{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,3]],"date-time":"2026-09-03T12:13:14Z","timestamp":1788437594681,"version":"build-2803163510"},"reference-count":43,"publisher":"American Chemical Society (ACS)","issue":"34","license":[{"start":{"date-parts":[[2026,8,19]],"date-time":"2026-08-19T00:00:00Z","timestamp":1787097600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52404296"],"award-info":[{"award-number":["52404296"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100018542","name":"Natural Science Foundation of Sichuan Province","doi-asserted-by":"publisher","award":["2025ZNSFSC1359"],"award-info":[{"award-number":["2025ZNSFSC1359"]}],"id":[{"id":"10.13039\/501100018542","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/na","name":"Docetoral foundation of SWUST","doi-asserted-by":"publisher","award":["23zx7181"],"award-info":[{"award-number":["23zx7181"]}],"id":[{"id":"10.13039\/na","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,9,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>The oxidation depression of arsenopyrite has been widely used in the sulfide ore flotation process to improve the quality of the final product. Hydrogen peroxide (H2O2) has been successfully applied in the oxidation inhibition of arsenopyrite, although its mechanism requires further refinement. This paper investigated the surface characterization of arsenopyrite depressed with hydrogen peroxide and its response to flotation performance to further clarify the composition of oxidized products on the arsenopyrite surface. The flotation experiment results suggested that the addition of H2O2 significantly reduced the flotation recovery of arsenopyrite, and the average recovery dropped by nearly 20%. The adsorption experiments showed that the adsorption capacity of butyl xanthate on the arsenopyrite surface was reduced from 1.4 \u00d7 10\u20136 mol\/L to 0.33 \u00d7 10\u20136 mol\/L when the dosage of H2O2 was 1 \u00d7 10\u20134 mol\/L at pH 7. XPS analysis results displayed that a large number of oxides, such as As(V)\u2013O, As(III)\u2013O, Fe(III)\u2013O, sulfates, and sulfites species, were produced on the arsenopyrite surface after H2O2 treatment, which effectively prevented butyl xanthate from adsorbing on the arsenopyrite surface. Furthermore, the solution component analysis results in the multiphase system further elucidated the existence forms of oxide products on the arsenopyrite surface. This study further improved the depression mechanism of the oxidation depressant on arsenopyrite.<\/jats:p>","DOI":"10.1021\/acsomega.6c03926","type":"journal-article","created":{"date-parts":[[2026,8,19]],"date-time":"2026-08-19T13:02:02Z","timestamp":1787144522000},"page":"51272-51280","source":"Crossref","is-referenced-by-count":0,"title":["The Role of Hydrogen Peroxide in Arsenopyrite Depression\nand Its Response Mechanism"],"prefix":"10.1021","volume":"11","author":[{"given":"Xi","family":"Zhang","sequence":"first","affiliation":[{"name":"Southwest Univ Sci & Technol , , , ,","place":["Mianyang, Sichuan, Peoples R China, 621010"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bingjun","family":"He","sequence":"additional","affiliation":[{"name":"Southwest Univ Sci & Technol , , , ,","place":["Mianyang, Sichuan, Peoples R China, 621010"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6872-8968","authenticated-orcid":true,"given":"Yu","family":"Wang","sequence":"additional","affiliation":[{"name":"Sichuan Shudao Mining Group Co.Ltd , , ,","place":["Chengdu, Sichuan, China, 610000"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhe","family":"Wang","sequence":"additional","affiliation":[{"name":"Southwest Univ Sci & Technol , , , ,","place":["Mianyang, Sichuan, Peoples R China, 621010"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hong","family":"Li","sequence":"additional","affiliation":[{"name":"Southwest Univ Sci & Technol , , , ,","place":["Mianyang, Sichuan, Peoples R China, 621010"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,8,19]]},"reference":[{"key":"2026090307180281200_cit1","doi-asserted-by":"publisher","first-page":"75","DOI":"10.1016\/j.mineng.2018.02.017","article-title":"Effect\nof acidic activators on the flotation of oxidized pyrrhotite","volume":"120","author":"Liu","year":"2018","journal-title":"Miner. Eng."},{"issue":"2","key":"2026090307180281200_cit2","doi-asserted-by":"publisher","first-page":"93","DOI":"10.1007\/BF03403138","article-title":"Improved flotation\nof arsenopyrite\nby ultrasonic pretreatment","volume":"20","author":"Misra","year":"2003","journal-title":"Min. Metall. Explor."},{"key":"2026090307180281200_cit3a","doi-asserted-by":"publisher","first-page":"207","DOI":"10.1016\/j.mineng.2014.04.003","article-title":"Flotation separation\nof copper sulphides from arsenic minerals at Rosebery copper concentrator","volume":"66","author":"Long","year":"2014","journal-title":"Miner. Eng."},{"key":"2026090307180281200_cit3b","doi-asserted-by":"publisher","first-page":"46","DOI":"10.1016\/j.mineng.2017.10.018","article-title":"Galvanic interaction of grinding\nmedia with arsenopyrite and pyrite and its effect on gold cyanide\nleaching","volume":"116","author":"Rabieh","year":"2018","journal-title":"Miner. Eng."},{"issue":"3\u20134","key":"2026090307180281200_cit3c","doi-asserted-by":"publisher","first-page":"93","DOI":"10.1016\/j.colsurfb.2004.06.011","article-title":"Selective separation of pyrite and chalcopyrite by\nbiomodulation","volume":"37","author":"Chandraprabha","year":"2004","journal-title":"Colloids Surf., B"},{"issue":"2","key":"2026090307180281200_cit4","doi-asserted-by":"publisher","first-page":"89","DOI":"10.1016\/j.minpro.2009.07.003","article-title":"Rejection\nof arsenic minerals in sulfide flotation\u2500A\nliterature review","volume":"93","author":"Ma","year":"2009","journal-title":"Int. J. Miner. Process."},{"issue":"9","key":"2026090307180281200_cit5a","doi-asserted-by":"publisher","first-page":"931","DOI":"10.1016\/S0892-6875(01)00103-0","article-title":"A review of the flotation of native\ngold and electrum","volume":"14","author":"Allan","year":"2001","journal-title":"Miner. Eng."},{"issue":"1","key":"2026090307180281200_cit5b","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1016\/S0892-6875(99)00145-4","article-title":"An evaluation of pretreatments\nto increase gold recovery from a refractory ore containing arsenopyrite\nand pyrrhotite","volume":"13","author":"Lehmann","year":"2000","journal-title":"Miner. Eng."},{"issue":"3\u20134","key":"2026090307180281200_cit5c","doi-asserted-by":"publisher","first-page":"263","DOI":"10.1016\/S0301-7516(00)00023-5","article-title":"The flotation separation of pyrite from arsenopyrite\nusing hexyl thioethylamine as collector","volume":"60","author":"Sirkeci","year":"2000","journal-title":"Int.\nJ. Miner. Process."},{"issue":"12","key":"2026090307180281200_cit6","doi-asserted-by":"publisher","first-page":"2342","DOI":"10.1016\/j.apgeochem.2009.09.008","article-title":"Arsenopyrite oxidation\u2013A\nreview","volume":"24","author":"Corkhill","year":"2009","journal-title":"Appl. Geochem."},{"issue":"1","key":"2026090307180281200_cit7","doi-asserted-by":"publisher","first-page":"38","DOI":"10.1016\/S0167-7799(02)00004-5","article-title":"Biomineralization\nof metal-containing ores and concentrates","volume":"21","author":"Rawlings","year":"2003","journal-title":"Trends\nIn Biotechnol."},{"key":"2026090307180281200_cit8","doi-asserted-by":"publisher","first-page":"109","DOI":"10.1016\/j.seppur.2019.04.007","article-title":"Depression\nmechanism involving Fe3+ during arsenopyrite flotation","volume":"222","author":"Yu","year":"2019","journal-title":"Sep. Purif. Technol."},{"key":"2026090307180281200_cit9","doi-asserted-by":"publisher","first-page":"118","DOI":"10.1016\/j.minpro.2013.08.004","article-title":"Arsenic rejection\nfrom\nlead concentrate using aluminosulfate","volume":"125","author":"You","year":"2013","journal-title":"Int.\nJ. Miner. Process."},{"issue":"19","key":"2026090307180281200_cit10","doi-asserted-by":"publisher","first-page":"4874","DOI":"10.1016\/j.gca.2006.07.021","article-title":"Oxidation of arsenopyrite\nand deposition of gold on the oxidized surfaces: A scanning probe\nmicroscopy, tunneling spectroscopy and XPS study","volume":"70","author":"Mikhlin","year":"2006","journal-title":"Geochim. Cosmochim. Acta"},{"issue":"370","key":"2026090307180281200_cit10b","doi-asserted-by":"publisher","first-page":"223","DOI":"10.1180\/minmag.1989.053.370.09","article-title":"Arsenopyrite: a spectroscopic investigation\nof altered surfaces","volume":"53","author":"Richardson","year":"1989","journal-title":"Mineral. Mag."},{"issue":"1\u20132","key":"2026090307180281200_cit11","doi-asserted-by":"publisher","first-page":"87","DOI":"10.1016\/0301-7516(87)90019-6","article-title":"A study of the surface oxidation of arsenopyrite using\ncyclic voltammetry","volume":"20","author":"Beattie","year":"1987","journal-title":"Int. J. Miner. Process."},{"key":"2026090307180281200_cit12a","doi-asserted-by":"publisher","first-page":"105863","DOI":"10.1016\/j.mineng.2019.105863","article-title":"Chemical oxidation of arsenopyrite\nusing a novel oxidant\u2500Chlorine dioxide","volume":"139","author":"Dong","year":"2019","journal-title":"Miner. Eng."},{"issue":"11","key":"2026090307180281200_cit12b","doi-asserted-by":"publisher","first-page":"1217","DOI":"10.1016\/j.mineng.2003.07.017","article-title":"The selective flotation of arsenopyrite\nfrom pyrite","volume":"16","author":"Tapley","year":"2003","journal-title":"Miner. Eng."},{"key":"2026090307180281200_cit13","doi-asserted-by":"publisher","first-page":"137590","DOI":"10.1016\/j.colsurfa.2025.137590","article-title":"A green depressant\nused for the efficient flotation separation of chalcopyrite and arsenopyrite:\nExperiment and theoretical study","volume":"725","author":"Jin","year":"2025","journal-title":"Colloids Surf.,\nA"},{"key":"2026090307180281200_cit14","doi-asserted-by":"publisher","first-page":"164095","DOI":"10.1016\/j.apsusc.2025.164095","article-title":"Investigation of differential\noxidation in promoting the flotation separation of chalcopyrite and\narsenopyrite: Experimental analysis and interfacial reaction mechanisms","volume":"711","author":"Cao","year":"2025","journal-title":"Appl. Surf. Sci."},{"key":"2026090307180281200_cit15","doi-asserted-by":"publisher","first-page":"109824","DOI":"10.1016\/j.mineng.2025.109824","article-title":"Effect of\na novel depressant on surface modification mechanism of arsenopyrite\nand improvement of S\u2013As flotation separation performance","volume":"235","author":"Zheng","year":"2026","journal-title":"Miner. Eng."},{"issue":"17","key":"2026090307180281200_cit16","doi-asserted-by":"publisher","first-page":"2933","DOI":"10.1080\/01496395.2018.1554685","article-title":"Flotation separation of pyrite from arsenopyrite in\nthe presence of oxidants","volume":"54","author":"Chen","year":"2019","journal-title":"Sep. Sci. Technol."},{"key":"2026090307180281200_cit17","doi-asserted-by":"publisher","first-page":"105837","DOI":"10.1016\/j.mineng.2019.105837","article-title":"Mechano-chemical oxidation of arsenopyrite","volume":"141","author":"Koroznikova","year":"2019","journal-title":"Miner. Eng."},{"key":"2026090307180281200_cit18","doi-asserted-by":"publisher","first-page":"117778","DOI":"10.1016\/j.seppur.2020.117778","article-title":"The interaction mechanism of Fe3+\nand NH4+ on chalcopyrite surface and its response to flotation separation\nof chalcopyrite from arsenopyrite","volume":"256","author":"Dong","year":"2021","journal-title":"Sep. Purif.\nTechnol."},{"issue":"11\u201313","key":"2026090307180281200_cit19a","doi-asserted-by":"publisher","first-page":"1070","DOI":"10.1016\/j.mineng.2010.07.006","article-title":"Bulk flotation of auriferous pyrite and arsenopyrite by using tertiary\ndodecyl mercaptan as collector in weak alkaline pulp","volume":"23","author":"Chen","year":"2010","journal-title":"Miner. Eng."},{"issue":"6","key":"2026090307180281200_cit19b","doi-asserted-by":"publisher","first-page":"990","DOI":"10.1134\/S1062739149060208","article-title":"Enhanced nonferrous\nand noble metal recovery in scheelite-sulfide ore flotation with Aeroflot\nreagents","volume":"49","author":"Samatova","year":"2013","journal-title":"J. Min. Sci."},{"issue":"3","key":"2026090307180281200_cit20","doi-asserted-by":"publisher","first-page":"435","DOI":"10.2320\/matertrans.M2014369","article-title":"Flotation behavior\nof arsenopyrite and pyrite, and their selective separation","volume":"56","author":"Park","year":"2015","journal-title":"Mater. Trans."},{"issue":"9","key":"2026090307180281200_cit21a","doi-asserted-by":"publisher","first-page":"1773","DOI":"10.1016\/0016-7037(95)00081-A","article-title":"Oxidation\nof arsenopyrite by air and air-saturated, distilled water, and implications\nfor mechanism of oxidation","volume":"59","author":"Nesbitt","year":"1995","journal-title":"Geochim. Cosmochim.\nActa"},{"issue":"23","key":"2026090307180281200_cit21b","doi-asserted-by":"publisher","first-page":"5616","DOI":"10.1016\/j.gca.2008.09.008","article-title":"The oxidative\ndissolution of arsenopyrite (FeAsS) and enargite (Cu3AsS4) by Leptospirillum\nferrooxidans","volume":"72","author":"Corkhill","year":"2008","journal-title":"Geochim. Cosmochim. Acta"},{"key":"2026090307180281200_cit22","doi-asserted-by":"publisher","first-page":"155476","DOI":"10.1016\/j.apsusc.2022.155476","article-title":"Surface properties\nand flotation inhibition mechanism of air oxidation on pyrite and\narsenopyrite","volume":"610","author":"Jiang","year":"2023","journal-title":"Appl. Surf. Sci."},{"key":"2026090307180281200_cit23","doi-asserted-by":"publisher","first-page":"135420","DOI":"10.1016\/j.jhazmat.2024.135420","article-title":"Study on the influence\nof active oxygen on the natural\noxidation of arsenopyrite under different temperature conditions","volume":"478","author":"Hongxin","year":"2024","journal-title":"J. Hazard. Mater."},{"key":"2026090307180281200_cit24a","doi-asserted-by":"publisher","first-page":"105853","DOI":"10.1016\/j.mineng.2019.105853","article-title":"Depression\nof pyrite in a low-alkaline medium with\nadded calcium hypochlorite: Experiment, visual MINTEQ models, XPS,\nand ToF\u2013SIMS studies","volume":"141","author":"Bai","year":"2019","journal-title":"Miner. Eng."},{"key":"2026090307180281200_cit24b","doi-asserted-by":"publisher","first-page":"106473","DOI":"10.1016\/j.mineng.2020.106473","article-title":"New insights into lead ions activation\nfor microfine particle ilmenite flotation in sulfuric acid system:\nVisual MINTEQ models, XPS, and ToF\u2013SIMS studies","volume":"155","author":"Bai","year":"2020","journal-title":"Miner. Eng."},{"key":"2026090307180281200_cit25a","doi-asserted-by":"publisher","first-page":"117416","DOI":"10.1016\/j.watres.2021.117416","article-title":"Synergistic oxidation of dissolved As(III) and arsenopyrite\nin the presence of oxygen: Formation and function of reactive oxygen\nspecies","volume":"202","author":"Hong","year":"2021","journal-title":"Water Res."},{"key":"2026090307180281200_cit25b","doi-asserted-by":"publisher","first-page":"110298","DOI":"10.1016\/j.mineng.2026.110298","article-title":"Unraveling\nthe relentless generation of acid mine drainage: autogenous \u201cself-motivation\nand self-discouragement\u201d during arsenopyrite oxidation","volume":"244","author":"Zhang","year":"2026","journal-title":"Miner. Eng."},{"issue":"6","key":"2026090307180281200_cit26","doi-asserted-by":"publisher","first-page":"108841","DOI":"10.1016\/j.jece.2022.108841","article-title":"Reactive\noxygen species generated in iron sulfide mediated\nadvanced oxidation systems: A critical review of mechanisms and implications\nfor geochemistry and environmental remediation","volume":"10","author":"Wei","year":"2022","journal-title":"J. Environ. Chem. Eng."},{"key":"2026090307180281200_cit27a","doi-asserted-by":"publisher","first-page":"118552","DOI":"10.1016\/j.jelechem.2024.118552","article-title":"A comprehensive electrochemical\nanalysis revealing the surface oxidation behavior difference between\npyrite and arsenopyrite","volume":"969","author":"Li","year":"2024","journal-title":"J. Electroanal. Chem."},{"key":"2026090307180281200_cit27b","doi-asserted-by":"publisher","first-page":"133589","DOI":"10.1016\/j.seppur.2025.133589","article-title":"Arsenopyrite removel with PHGMS method for improving Cu-As flotation\nseparation performance","volume":"373","author":"Dai","year":"2025","journal-title":"Sep. Purif. Technol."},{"key":"2026090307180281200_cit27c","doi-asserted-by":"publisher","first-page":"107133","DOI":"10.1016\/j.mineng.2021.107133","article-title":"Review on\narsenic removal from sulfide minerals: An emphasis on enargite and\narsenopyrite","volume":"172","author":"Zhao","year":"2021","journal-title":"Miner. Eng."},{"key":"2026090307180281200_cit28","doi-asserted-by":"publisher","first-page":"131987","DOI":"10.1016\/j.jclepro.2022.131987","article-title":"Oxidation mechanism of arsenopyrite under alkaline\nconditions: Experimental and theoretical analyses","volume":"358","author":"Chen","year":"2022","journal-title":"J. Clean. Prod."},{"issue":"1","key":"2026090307180281200_cit41","doi-asserted-by":"crossref","first-page":"30","DOI":"10.1021\/acs.estlett.5b00311","article-title":"Fe\u223c(3+) Addition Promotes Arsenopyrite Dissolution\nand Iron(III) (Hydr)oxide Formation and Phase Transformation","volume":"3","author":"Neil","year":"2016","journal-title":"Environ. Sci. Technol. Lett."},{"key":"2026090307180281200_cit30a","doi-asserted-by":"publisher","first-page":"425","DOI":"10.1016\/j.jhazmat.2019.03.086","article-title":"Characterization\nof secondary products in arsenopyrite-bearing mine wastes: influence\nof cementation on arsenic attenuation","volume":"373","author":"Murciego","year":"2019","journal-title":"J. Hazard.\nMater."},{"issue":"2","key":"2026090307180281200_cit30b","doi-asserted-by":"publisher","first-page":"162","DOI":"10.1016\/j.hydromet.2010.05.012","article-title":"Jarosite\npseudomorph formation from arsenopyrite oxidation using Acidithiobacillus\nferrooxidans","volume":"104","author":"Henao","year":"2010","journal-title":"Hydrometallurgy"}],"container-title":["ACS Omega"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pubs.acs.org\/doi\/pdf\/10.1021\/acsomega.6c03926","content-type":"application\/pdf","content-version":"vor","intended-application":"unspecified"},{"URL":"https:\/\/pubs.acs.org\/acsodf\/article-pdf\/11\/34\/51272\/66874134\/acsomega.6c03926.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/pubs.acs.org\/acsodf\/article-pdf\/11\/34\/51272\/66874134\/acsomega.6c03926.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,3]],"date-time":"2026-09-03T11:18:09Z","timestamp":1788434289000},"score":1,"resource":{"primary":{"URL":"https:\/\/pubs.acs.org\/acsodf\/article\/11\/34\/51272\/5276401\/The-Role-of-Hydrogen-Peroxide-in-Arsenopyrite"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,8,19]]},"references-count":43,"journal-issue":{"issue":"34","published-online":{"date-parts":[[2026,8,19]]},"published-print":{"date-parts":[[2026,9,1]]}},"URL":"https:\/\/doi.org\/10.1021\/acsomega.6c03926","relation":{},"ISSN":["2470-1343"],"issn-type":[{"value":"2470-1343","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,8,19]]}}}