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| 1 | 纳米异质结光催化材料在环境污染控制领域的研究进展显示文摘纳米异质结结合了纳米材料和异质结的优点,在许多领域得到广泛研究。在环境污染控制领域,由于能够克服TiO2光催化剂的量子效率低和不能有效利用可见光等缺点,纳米异质结具有潜在的应用价值。本文首先介绍了与污染控制有关的异质结的基本理论,包括内建电场对光致电荷分离的驱动作用及其作用范围,光照方式、上层半导体厚度、能带和构型对异质结电荷分离方式的影响。然后总结了纳米pn结、nn结、肖特基结、半导体与碳材料构成的纳米异质结光催化材料在环境污染控制领域的进展,并对其发展趋势作了展望。 | 于洪涛 全燮 | 2009 | 化学进展2009，21，2： | 52 |
| 2 | Y_2O_3/WO_3光催化降解溴酚蓝染料的研究显示文摘采用光催化剂Y2O3/WO3对含溴酚蓝染料废水的处理进行了研究,探讨了光催化剂作用机理,讨论了光催化剂组成、用量、试液pH值、光照时间与溴酚蓝染料溶液脱色率的关系。结果表明,当w(Y2O3)=1.5%、50mL时试液的起始质量浓度为20mg/L,催化剂用量为0.400g,pH=7.0,光照6h时溴酚蓝染料溶液的脱色率可达96.8%。 | 崔玉民 张文保 苗慧 王洪涛 | 2010 | 材料导报2010，24，14： | 4 |
| 3 | 纳米棒状α-Fe_2O_3的制备及其光催化性能显示文摘用均匀沉淀法制备了纳米棒状氧化铁,并用XRD和TEM等技术进行了表征。研究了其对果绿、碱性黄和亮蓝溶液的光催化降解性能,考察了光催化剂用量、光照时间及空气的存在对三种染料降解脱色率的影响。结果表明,制备的光催化剂为六方晶系的纳米棒状α-Fe2O3,其长轴约为(300~500)nm,短轴约为(20~40)nm。对浓度为10mg·L^-1的果绿、碱性黄和亮蓝溶液,当催化剂用量分别为0.30g·L^-1、0.30g·L^-1和0.40g·L^-1时,在通入200mL·min^-1空气的条件下,用紫外光照射150min,三种染料的降解脱色率可分别达到97.98%、94.89%和92.64%。 | 刘翠 李保山 吴艳萍 | 2007 | 工业催化2007，15，10： | 3 |
| 4 | Preparation and photocatalytic properties of ilmenite NiTiO_3 powders for degradation of humic acid in water显示文摘The powders of ilmenite structure NiTiO3 were prepared by a modified Pechini process using tetrabutyl titanate and nickel acetate as raw materials, and using citric acid and ethanol as a chelating agent and a solvent respectively. The powder samples were characterized by thermogravimetric and differential thermal analysis (TG-DTA) and X-ray diffraction (XRD). The photocatalytic activity of NiTiO3 under the irradiation of ultraviolet rays (UV) light was evaluated by degrading humic acid (HA) in water as a probe reaction. The possible photodegra-dation mechanism was studied by the examination of active species -OH, , and holes (h+) through adding scavengers. The TG-DTA and XRD results indicated that the good crystal structure of ilmenite phase NiTiO3 could be obtained when the Ni-Ti citrate complex was cal-cined at 600°C. The photocatalytic activity experiments indicated that NiTiO3 had favourable photocatalytic activity under the irradiation of UV light, and the photocatalytic degradation rate of HA reached 95.3% after a 2.5 h reaction with the photocatalyst calcined at 600°C and a photocatalyst dosage of 0.4 g/L. The possible photocatalytic mechanism was deduced that holes (h+) and-OH radicals are the major reactive active species in the photocatalytic reaction, and dissolved oxygen plays a weak role in the degradation of HA. | Pei-hong Yuan Cai-mei Fan Guang-yue Ding Yun-fang Wang Xiao-chao Zhang | 2012 | International Journal of Minerals,Metallurgy and Materials2012，19，4： | 2 |
| 5 | Y_2O_3/WO_3光催化降解污水处理厂综合废水的研究显示文摘采用复相催化剂Y2O3/WO3对阜阳市污水处理厂综合废水处理进行研究,实验结果表明,固定光催化剂配比m(WO3)∶m(Y2O3)=1.470∶0.030、用量为0.400g,试液的pH=7.2,H2O2溶液用量为0.25mL,光照时间6h,综合废水的COD去除率达到82.7%,而相同条件下暗反应、空白实验反应综合废水COD去除率分别为18.5%、15.9%。该方法具有操作工艺简单,节省能源,所需设备少,处理彻底,氧化能力强,无二次污染等优点。 | 张坤 崔玉民 张文保 杜运辉 | 2011 | 稀土2011，32，1： | 2 |
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