{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T03:52:03Z","timestamp":1789185123164,"version":"build-2803163510"},"reference-count":51,"publisher":"American Chemical Society (ACS)","issue":"21","license":[{"start":{"date-parts":[[2020,10,15]],"date-time":"2020-10-15T00:00:00Z","timestamp":1602720000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2020,10,15]],"date-time":"2020-10-15T00:00:00Z","timestamp":1602720000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2020,10,15]],"date-time":"2020-10-15T00:00:00Z","timestamp":1602720000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-045"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["21707153"],"award-info":[{"award-number":["21707153"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["21976195"],"award-info":[{"award-number":["21976195"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,11,3]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>The removal of arsenic and heavy metals (HMs) from strongly acidic wastewater by hydrogen sulfide (H2S) is an efficient method. However, traditional sulfuration reagents (Na2S, FeS, CaS, etc.) rapidly release H2S under acidic conditions via spontaneous hydrolysis, leading to serious H2S pollution. Herein, a H2S release process employing thiosulfate as a sulfuration reagent was proposed to eliminate H2S pollution. We found that thiosulfate can release H2S with specificity both in the dark and under ultraviolet (UV) irradiation under acidic conditions. In the absence of arsenic\/HMs, H2S is not released because the formed H2S is consumed by a thiosulfate decomposition product, sulfite, or by its photolysis. In the presence of arsenic\/HMs, H2S is released because the formed H2S immediately reacts with arsenic\/HMs to generate sulfide precipitates rather than being consumed. The efficiency of transforming thiosulfate to H2S under UV irradiation is 2.5-fold the efficiency in the dark, because UV irradiation promotes the transformation of \u201ceffective sulfur\u201d in thiosulfate molecules to form H2S through the transformation of HS\u00b7 and S2O3\u2022\u202f\u2013 radicals. Moreover, more than 99.9% of arsenic\/HMs were removed from strongly acidic wastewater without producing H2S pollution under UV irradiation. This thiosulfate-based H2S-specific release process solves the problem of H2S pollution under acidic conditions.<\/jats:p>","DOI":"10.1021\/acs.est.0c05166","type":"journal-article","created":{"date-parts":[[2020,10,15]],"date-time":"2020-10-15T18:01:04Z","timestamp":1602784864000},"page":"14076-14084","source":"Crossref","is-referenced-by-count":68,"title":["Specific\nH2S Release from Thiosulfate Promoted\nby UV Irradiation for Removal of Arsenic and Heavy Metals from Strongly\nAcidic Wastewater"],"prefix":"10.1021","volume":"54","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7758-5279","authenticated-orcid":true,"given":"Linghao","family":"Kong","sequence":"first","affiliation":[{"name":"Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , , ,","place":["Beijing, China, 100085"]},{"name":"Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , , ,","place":["Beijing, China, 100085"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xingyun","family":"Hu","sequence":"additional","affiliation":[{"name":"Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , , ,","place":["Beijing, China, 100085"]},{"name":"Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , , ,","place":["Beijing, China, 100085"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7150-0606","authenticated-orcid":true,"given":"Xianjia","family":"Peng","sequence":"additional","affiliation":[{"name":"Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , , ,","place":["Beijing, China, 100085"]},{"name":"Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , , ,","place":["Beijing, China, 100085"]},{"name":"University of Chinese Academy of Sciences , ,","place":["Beijing, China, 100049"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xianliang","family":"Wang","sequence":"additional","affiliation":[{"name":"Chinese Center for Disease Control and Prevention , , ,","place":["Beijing, China, 100021"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2020,10,15]]},"reference":[{"key":"2026081717210253900_cit1","doi-asserted-by":"publisher","first-page":"986","DOI":"10.1016\/j.cej.2016.05.109","article-title":"Treatment\nof strongly acidic wastewater with high arsenic\nconcentrations by ferrous sulfide (FeS): Inhibitive effects of S(0)-enriched\nsurfaces","volume":"304","author":"Liu","year":"2016","journal-title":"Chem. 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Cleaner Prod."},{"issue":"1","key":"2026081717210253900_cit35","doi-asserted-by":"publisher","first-page":"47","DOI":"10.1021\/ja00756a009","article-title":"Electronic spectra,\nphotochemistry,\nand autoxidation mechanism of the sulfite-bisulfite-pyrosulfite systems.\nThe SO2\u2013, SO3\u2013, SO4\u2013, and SO5\u2013 radicals","volume":"94","author":"Hayon","year":"1972","journal-title":"J. Am. Chem. Soc."},{"issue":"37","key":"2026081717210253900_cit36","doi-asserted-by":"publisher","first-page":"15111","DOI":"10.1021\/jp953236b","article-title":"Photodecomposition\nand photooxidation of hydrogen sulfite\nin aqueous solution","volume":"100","author":"Fischer","year":"1996","journal-title":"J. Phys. Chem."},{"issue":"5","key":"2026081717210253900_cit37","doi-asserted-by":"publisher","first-page":"2191","DOI":"10.1021\/j100368a084","article-title":"Photooxidation of sulfite\n(SO32\u2011) in aqueous solution","volume":"94","author":"Deister","year":"1990","journal-title":"J. Phys. 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Food Chem."},{"issue":"8","key":"2026081717210253900_cit42","doi-asserted-by":"publisher","first-page":"687","DOI":"10.1021\/ed063p687","article-title":"The new\nlow value for the second dissociation constant for H2S:\nIts history, its best value, and its impact on the teaching of sulfide\nequilibria","volume":"63","author":"Myers","year":"1986","journal-title":"J. Chem. Educ."},{"issue":"11","key":"2026081717210253900_cit43","doi-asserted-by":"publisher","first-page":"1914","DOI":"10.1002\/anie.200604525","article-title":"The sulfhydryl\nradical (HS\u00b7\/S.\u2011): A contender for the isomerization\nof double bonds\nin membrane lipids","volume":"46","author":"Lykakis","year":"2007","journal-title":"Angew. Chem., Int. Ed."},{"issue":"9","key":"2026081717210253900_cit44","doi-asserted-by":"publisher","first-page":"3676","DOI":"10.1021\/j100162a044","article-title":"Reactions\nof HS\u00b7 and S\u00b7\u2013 with molecular oxygen,\nH2S, HS\u2013, and S2\u2011:\nFormation of SO2\u00b7\u2013, HSSH\u00b7\u2013, HSS\u00b72\u2011, and HSS\u00b7","volume":"95","author":"Zhu","year":"1991","journal-title":"J. Phys. Chem."},{"issue":"27","key":"2026081717210253900_cit45","doi-asserted-by":"publisher","first-page":"5221","DOI":"10.1021\/jp9907544","article-title":"Reduction potential\nof the sulfhydryl radical: Pulse radiolysis and laser flash photolysis\nstudies of the formation and reactions of \u00b7SH and HSSH\u00b7\u2013 in aqueous solutions","volume":"103","author":"Das","year":"1999","journal-title":"J. Phys.\nChem. 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Photobiol., A"},{"issue":"1","key":"2026081717210253900_cit49","doi-asserted-by":"publisher","first-page":"297","DOI":"10.1063\/1.439873","article-title":"193 nm photodissociation\nof H2S: The SH\ninternal energy distribution","volume":"73","author":"Hawkins","year":"1980","journal-title":"J. Chem. Phys."},{"issue":"19","key":"2026081717210253900_cit50","doi-asserted-by":"publisher","first-page":"4707","DOI":"10.1021\/ie020275i","article-title":"Kinetics of reaction between hydrogen\nsulfide and sulfur dioxide in sulfuric acid solutions","volume":"41","author":"Wang","year":"2002","journal-title":"Ind. Eng. Chem. Res."},{"issue":"22","key":"2026081717210253900_cit51","doi-asserted-by":"publisher","first-page":"4714","DOI":"10.1021\/es000963y","article-title":"Kinetics of arsenate\nreduction by dissolved sulfide","volume":"34","author":"Rochette","year":"2000","journal-title":"Environ. 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