| 引用本文: | 王晶惠,王泳惠,文超,张珊珊,徐为治,姜思达.Fe78Si9B13非晶粉末活化过硫酸盐降解水中苯并噻唑研究[J].材料科学与工艺,2025,33(5):10-18.DOI:10.11951/j.issn.1005-0299.20240079. |
| WANG Jinghui,WANG Yonghui,WEN Chao,ZHANG Shanshan,XU Weizhi,JIANG Sida.Study on the degradation of benzothiazole in water by Fe78Si9B13 amorphous powder activated persulfate[J].Materials Science and Technology,2025,33(5):10-18.DOI:10.11951/j.issn.1005-0299.20240079. |
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| Fe78Si9B13非晶粉末活化过硫酸盐降解水中苯并噻唑研究 |
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王晶惠1,2, 王泳惠3, 文超1, 张珊珊1, 徐为治4, 姜思达5,6
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(1.哈尔滨工业大学水资源国家工程研究中心有限公司,哈尔滨 150001; 2.广东粤海水务投资有限公司,广东 深圳 518021;3.哈尔滨工业大学 物理学院,哈尔滨 150001; 4.哈尔滨工业大学 材料科学与工程学院,哈尔滨 150001;5.哈尔滨工业大学 空间环境与物质科学研究院,哈尔滨 150001;6.空间环境与物质作用国家重点实验室(哈尔滨工业大学),哈尔滨 150001) [HJ0.3mm]
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| 摘要: |
| 为研究Fe78Si9B13非晶粉末的高级氧化催化性能及影响因素,以苯并噻唑水溶液为主要降解目标,研究了初始pH值、Na2S2O8投放量、温度、Fe78Si9B13非晶粉末用量和初始污染物浓度对活化过硫酸盐降解苯并噻唑的影响。通过HPLC、XRD、SEM等测试了样品的结构、形貌和催化性能。研究表明:与其他催化剂相比,Fe78Si9B13非晶粉末具有优越的催化性能,0.5 g/L的非晶粉末在6 min内即可将50 mg/L的苯并噻唑降解完全；在环境因素影响的探究实验中,发现催化剂在溶液温度为25 ℃、催化剂剂量为0.5 g/L、Na2S2O8投放量为10 mmol/L、pH=7的条件下具有最佳的催化性能,其中,Na2S2O8在较大的pH值范围内(pH=3~9)都极易被催化剂活化产生硫酸根自由基(SO·-4)和羟基自由基(·OH),突破了以往只在酸性条件下具有优异催化性能的限制。低成本、小剂量的非晶粉末催化剂即可提供超快的降解效率,在工程应用中具有广阔的应用前景。 |
| 关键词: 高级氧化催化 非晶粉末 苯并噻唑 过硫酸盐体系 环境适应性 |
| DOI：10.11951/j.issn.1005-0299.20240079 |
| 分类号:O643 |
| 文献标识码:A |
| 基金项目:国家自然科学基金资助项目(52271028)；哈尔滨工业大学水资源国家工程研究中心有限公司揭榜制科研项目(MH20220976). |
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| Study on the degradation of benzothiazole in water by Fe78Si9B13 amorphous powder activated persulfate |
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WANG Jinghui1,2, WANG Yonghui3, WEN Chao1, ZHANG Shanshan1, XU Weizhi4, JIANG Sida5,6
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(1.National Engineering Research Center of Urban Water Resources Development and Utilization,Harbin Institute of Technology, Harbin 150001, China; 2.Guangdong Yuehai Water Investment Co., Ltd., Shenzhen 518021, China; 3.School of Physics, Harbin Institute of Technology, Harbin 150001, China; 4.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China; 5.School of Space Enviroment and Material Science Research, Harbin Institute of Technology, Harbin 150001, China; 6.State Key Laboratory of Space Environment and Matter Behaviors (Harbin Institute of Technology), Harbin 150001, China) [HJ0.2mm]
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| Abstract: |
| In order to study the catalytic performance and influencing factors of advanced oxidation of Fe78Si9B13 amorphous powder, the effects of initial pH, Na2S2O8 dosage, temperature, Fe78Si9B13 amorphous powder dosage and initial pollutant concentration on the degradation of benzothiazole by activated persulfate were studied. The structure, morphology and catalytic performance of the samples were tested by HPLC, XRD, SEM, etc. The results show that compared with other catalysts, Fe78Si9B13 amorphous powder exhibits superior catalytic performance, with 0.5 g/L of the amorphous powder degrading 50 mg/L of benzothiazole completely within 6 min. In the experiments on the effects of environmental factors, it is found that catalyt performs optimally at a solution temperature of 25 ℃, catalyst dosage of 0.5 g/L, Na2S2O8 dosage of 10 mmol/L, and pH of 7. Under these conditions, Na2S2O8 is easily activated by catalysts in a large pH range (pH=3-9) to produce sulfate radicals (SO·-4) and hydroxyl radicals (·OH), breaking the previous limitation of excellent catalytic performance only under acidic conditions. This low-cost, low-dosage amorphous powder catalysts can provide rapid degradation efficiency, which has significant potential for widespread application in engineering applications. |
| Key words: advanced oxidation catalysis amorphous powder benzothiazole persulfate system environmental adaptability |
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