Abstract：The functions of Fe2+, STPP, 2-hydroxy-1,4-naphthoquinone (LQ) on the reduction of p-nitrophenol (PNP) in the anaerobic water environment were studied in this research. Besides, effects of different factors on the reduction of PNP by LQ mediated Fe2+-STPP were also explored. The results showed that the experiment system had the reduction effect on PNP when the initial pH value was 3~9 and the change of STPP concentration made no difference on the reduction of PNP. However, with the increase of the concentration of LQ or Fe2+, the reduction rate of PNP increased. The mechanism research showed that 58.4% of LQ produced non-quinone after accepting electrons, and the rest of LQ became semiquinone radical and then transferred electrons to PNP. In addition, only a small part of the electrons provided by Fe2+ were used in PNP reduction, and the overall electron utilization efficiency of the experimental system was low.
Din M I, Khalid R, Hussain Z, et al. Nanocatalytic assemblies for catalytic reduction of nitrophenols:A critical review[J]. Critical Reviews in Analytical Chemistry, 2019,50(4):322-338.
[2]
丁钰力,王学江,贺莹,等.基于枯草芽孢杆菌微生物传感器的毒性分析[J]. 中国环境科学, 2010,30(3):405-409. Ding Y L, Wang X J, He Y, et al. Toxicity analysis based on Bacillus subtilis microbial sensor[J]. China Environmental Science, 2010,30(3):405-409.
[3]
陈海荣,朱利中,杨坤,等.钱塘江水系中酚类化合物的浓度水平及污染特征[J]. 中国环境科学, 2005,25(6):729-732. Chen H R, Zhu L Z, Yang K, et al. Concentration and pollution characteristics of phenolic compounds in Qiantang River[J]. China Environmental Science, 2005,25(6):729-732.
[4]
王莉,王玉平,卢迎红,等.辽河流域浑河沈阳段地表水重点控制有机污染物的筛选[J]. 中国环境监测, 2005,21(6):59-62. Wang L, Wang Y P, Lu Y H, et al. The sifting of priority control organic pollutants in Hunhe River of Liaohe Basin in Shenyang city[J]. Environmental Monitoring in China, 2005,21(6):59-62.
[5]
Buerge I J, Hug S J. Kinetics and pH dependence of chromium (VI) reduction by iron (Ⅱ)[J]. Environmental Science & Technology, 1997,31(5):1426-1432.
[6]
Pettine M, D'Ottone L, Campanella L, et al. The reduction of chromium (VI) by iron (Ⅱ) in aqueous solutions[J]. Geochimica et Cosmochimica Acta, 1998,62(9):1509-1519.
[7]
孙猛,赵勇胜,董军,等.地下环境中Fe2+对硝基苯的还原衰减作用模拟研究[J]. 环境科学, 2011,32(5):1372-1376. Sun M, Zhao Y S, Dong J, et al. Simulation study on reductive attenuation of nitrobenzene by Fe2+ in subsurface environment[J]. Environmental Science, 2011,32(5):1372-1376.
[8]
Keenan C R, Sedlak D L. Ligand-enhanced reactive oxidant generation by nanoparticulate zero-valent iron and oxygen[J]. Environmental Science & technology, 2008,42(18):6936-6941.
[9]
高志婷.低价铁活化分子氧降解典型有机污染物的研究[D]. 武汉:华中师范大学, 2013. Gao Z T. Activation of molecular oxygen over low valent iron for degradation of typical organic pollutants[D]. Wuhan:Central China Normal University, 2013.
[10]
Wang L, Wang F, Li P, et al. Ferrous-tetrapolyphosphate complex induced dioxygen activation for toxic organic pollutants degradation[J]. Separation and Purification Technology, 2013,120:148-155.
[11]
Buerge I J, Hug S J. Influence of mineral surfaces on chromium (VI) reduction by iron (Ⅱ)[J]. Environmental Science & Technology, 2009,33(23):4285-4291.
[12]
顾丽鹏,何欢,胥志祥,等.可溶性有机质生物改性介导17β-雌二醇生物降解作用[J]. 中国环境科学, 2016,36(2):468-475. Gu L P, He H, Xu Z X, et al. Biological modification of soluble organic matter mediates the biodegradation of 17β-estradiol[J]. China Environmental Science, 2016,36(2):468-475.
[13]
Kang S H, Bokare A D, Park Y, et al. Electron shuttling catalytic effect of mellitic acid in zero-valent iron induced oxidative degradation[J]. Catalysis Today, 2017,282(1):65-70.
[14]
Zee F P V D, Cervantes F J. Impact and application of electron shuttles on the redox (bio)transformation of contaminants:a review[J]. Biotechnology Advances, 2009,27(3):256-277.
[15]
Hofstetter T B, Heijman C G, Haderlein S B, et al. Complete reduction of TNT and other (Poly)nitroaromatic compounds under iron-reducing subsurface conditions[J]. Environmental Science & Technology, 1999, 33(9):1479-1487.
[16]
Scott D T, Mcknight D M, Blunt-Harris E L, et al. Quinone moieties act as electron acceptors in the reduction of humic substances by humics-reducing microorganisms[J]. Environmental Science & Technology, 1998,32(19):372-372.
[17]
李祥.食品添加剂使用技术[M]. 北京:化学工业出版社, 2010:302-306. Li X. Food additive application technology[M]. Beijing:Chemical Industry Press, 2010:302-306.
[18]
曹亚倩.2-羟基-1,4-萘醌参与的多组分反应[D]. 石家庄:河北师范大学, 2017. Cao Y Q. 2-Hydroxy-1,4-naphthoquinone is participated in the multi-component reaction[D]. Shijiazhuang:Hebei Normal University, 2017.
[19]
Uchimiya M, Stone A T. Reversible redox chemistry of quinones:Impact on biogeochemical cycles[J]. Chemosphere, 2009,77(4):451-458.
[20]
Biaglow J E, Kachur A V. The generation of hydroxyl radicals in the reaction of molecular oxygen with polyphosphate complexes of ferrous ion.[J]. Radiation Research, 1997,148(2):181-187.
[21]
Aescher M, Vergary D, Schwarzenbach R P, et al. Electrochemical analysis of proton and electron transfer equilibria of the reducible moieties in humic acids[J]. Environmental Science & Technology, 2011,45(19):8385-8394.
[22]
Hakala J A, Chin Y P, Weber E J. Influence of dissolved organic matter and Fe(Ⅱ) on the abiotic reduction of pentachloronitrobenzene[J]. Environmental Science & Technology, 2007,41(21):7337-7342.
[23]
Kudlich M, Keck A, Klein J, et al. Localization of the enzyme system involved in anaerobic reduction of azo dyes by Sphingomonas sp. strain BN6 and effect of artificial redox mediators on the rate of azo dye reduction[J]. Applied and Environmental Microbiology, 1997, 63(9):3691-3694.
[24]
Zhang C W, Li T Y, Zhang J Y, et al. Degradation of p-nitrophenol using a ferrous-tripolyphosphate complex in the presence of oxygen:The key role of superoxide radicals[J]. Applied Catalysis B:Environmental, 2019,259:118030.
