CAJ | 학술논문

染料废水处理是水污染治理中非常重要内容之一，针对染料废水带有极高的色度、可生化性差和含“三致”物等特点。本文采用水热法制备复合材料用于染料废水处理。通过XRD、T EM、SBET 等表征手段证实制备材料为核-壳Fe3 O4＠ SiO2-T iO2复合材料。将此材料用于染料废水处理，选用亚甲基蓝（Methylene Blue ，简称MB）作为染料废水典型目标物，测定催化剂Ti：Si摩尔比、催化剂用量、染料溶液pH值和催化剂重复利用对染料废水降解效果影响。研究结果表明，染料废水浓度为14mg/L ，双氧水用量为2mL ，催化剂用量为2g/L ，脱色90min时，溶液脱色率能达到98．6％。催化剂重复使用4次，其脱色效果仍然保持在90％左右。由此可见，用此方法制备的核-壳材料是比较有效且实用的一种染料废水处理非均相Fenton催化剂。
염료폐수처리시수오염치리중비상중요내용지일，침대염료폐수대유겁고적색도、가생화성차화함“삼치”물등특점。본문채용수열법제비복합재료용우염료폐수처리。통과XRD、T EM、SBET 등표정수단증실제비재료위핵-각Fe3 O4＠ SiO2-T iO2복합재료。장차재료용우염료폐수처리，선용아갑기람（Methylene Blue ，간칭MB）작위염료폐수전형목표물，측정최화제Ti：Si마이비、최화제용량、염료용액pH치화최화제중복이용대염료폐수강해효과영향。연구결과표명，염료폐수농도위14mg/L ，쌍양수용량위2mL ，최화제용량위2g/L ，탈색90min시，용액탈색솔능체도98．6％。최화제중복사용4차，기탈색효과잉연보지재90％좌우。유차가견，용차방법제비적핵-각재료시비교유효차실용적일충염료폐수처리비균상Fenton최화제。
Dyestuff textile wastewater treatment has become a research hotspot due to it ’s high chroma ,poor biodegradability ,and low toxicity characteristics .In this paper ,we have synthesized composite materials by hydrothermal methods .Core-shell Fe3 O4@ SiO2 -TiO2 materials were charac-terized by XRD ,TEM and so on .This materials have been applied to dye wastewater treatment . Methylene blue was used as typical target of dye wastewater .Degradation effects of dye wastewater were determined by catalyst with different Ti :Si molar ratios ,amount of catalyst ,pH value of the dye solution and catalyst reuse . A serious of results of study show that decolorization ratios of dye wastewater arrived at 98 .6% under optimal conditions .When catalysts were reused for 4 times ,it’s decolorization ratios were maintained at about 90% . Therefore , this materials synthesized by this methods is an effective and practical dye wastewater treatment catalysts .