无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2021, Vol. 53 ›› Issue (3): 68-72.doi: 10.11962/1006-4990.2020-0190

• 环境·健康·安全 • 上一篇    下一篇

钛白副产硫酸亚铁光芬顿氧化降解甲基橙的研究

舒弋芮1,2(),张攀1,2,王玮1,2,向恒立1,2,任根宽3,许德华1,2,张志业1,2,杨秀山1,2()   

  1. 1.四川大学化学工程学院,四川成都610065
    2.教育部磷资源综合利用与清洁加工工程研究中心
    3.宜宾学院
  • 收稿日期:2020-09-19 出版日期:2021-03-10 发布日期:2021-03-11
  • 作者简介:舒弋芮(1996— ),女,硕士研究生,研究方向为固废资源化利用;E-mail:shuyirui@163.com
  • 基金资助:
    四川大学-攀枝花市科技合作专项资金(2018CDPZH-5)

Titanium white by-product ferrous sulfate photofenton oxidation degradation of methyl orange in wastewater

Shu Yirui1,2(),Zhang Pan1,2,Wang Wei1,2,Xiang Hengli1,2,Ren Genkuan3,Xu Dehua1,2,Zhang Zhiye1,2,Yang Xiushan1,2()   

  1. 1. School of Chemical Engineering,Sichuan University,Chengdu 610065,China
    2. Engineering Research Center of Comprehensive Utilization and Clean Processing of Phosphorus Resources,Ministry of Education
    3. Yibin University
  • Received:2020-09-19 Published:2021-03-10 Online:2021-03-11

摘要:

以钛白副产硫酸亚铁作为光芬顿的铁源和催化剂,研究了钛白副产硫酸亚铁-过氧化氢体系在紫外光照射条件下对甲基橙的氧化分解作用,并分析了温度、过氧化氢浓度、波长、钛白副产硫酸亚铁浓度和纯硫酸亚铁浓度等因素对甲基橙脱色率的影响。实验结果表明:当温度为35 ℃、过氧化氢浓度为6.4 mmol/L、副产硫酸亚铁浓度为1.0 mmol/L时,在395 nm波长下甲基橙的脱色速率最快,达到100%。在相同条件下,钛白副产硫酸亚铁对甲基橙的脱色效果优于纯硫酸亚铁的效果。因此,以钛白副产硫酸亚铁作为光芬顿催化剂,并以此来催化降解甲基橙,提高了钛白副产硫酸亚铁的资源利用率,拓宽了其资源化利用的途径。

关键词: 钛白副产硫酸亚铁, 光催化, 废水处理, 甲基橙, 降解

Abstract:

Using ferrous sulfate(by-product of tianium white) as iron source and catalyst of photogenic Fenton,the oxidative decomposition of methyl orange by ferrous sulfate-H2O2 system under ultraviolet light was studied.The effect of temperature, concentration of H2O2,wavelength of ultraviolet light,concentration of ferrous sulfate and concentration of Fe2+ on the decolorization rate of methyl orange was investigated.It is demonstrated that the decolorization rate of methyl orange is the fastest which reaches 100% under the conditions of 35 ℃,6.4 mmol/L of hydrogen peroxide,1.0 mmol/L of ferrous sulfate(about 1.0 mmol/L of Fe2+) and 395 nm of ultraviolet light.The decolorization effect of the ferrous sulfate on methyl orange was better than that of pure heptahydrate ferrous sulfate.The work has expanded a new strategy for the effective utilization of the by-product of tianium white,which can be used to treat methyl orange by catalytic degradation

Key words: ferrous sulfate produced by titanium dioxide, photocatalytic, wastewater treatment, methyl orange, degradation

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