Research on the adsorption enhancement and selectivity removal of dye wastewater by titanium dioxide

doi:10.11894/1005-829x.2018.38(11).073

Abstract

Abstract: TiO₂ has been synthesized by hydrothermal method,using Ti(OC₄H₉)₄,C₂H₅OH,H₂O and H₂SO₄ as raw materials. Taking the dyestuff mixed wastewater reactive yellow X-R + basic fuchsine as target substances to be removed,the effects of TiO₂ before and after modified by H₂SO₄(H₂SO₄-TiO₂) on the adsorption capability and selectivity for the target pollutants have been investigated,and the materials characterized. The results show that the adsorption effects of H₂SO₄-TiO₂ on dyestuff reactive yellow X-R and basic fuchsine are enhanced significantly. Its saturated adsorption capacities for dyestuff reactive yellow X-R and basic fuchsine are 4.893 4 times and 1.203 7 times, respectively,of pure TiO₂. In the mixed wastewater,the removal of dyestuff reactive yellow X-R by H₂SO₄-TiO₂ has obvious selectivity.

Key words: TiO₂, dye wastewater, adsorption, selectivity

摘要： 以钛酸四丁酯、无水乙醇、水、硫酸为原料，采用水热法合成TiO₂，并以活性黄+碱性品红染料混合废水为目标去除物，考察TiO₂和经硫酸修饰后的H₂SO₄-TiO₂对目标污染物的吸附性能及选择性。对材料进行了表征，结果表明，经硫酸修饰的TiO₂对活性黄、碱性品红染料的吸附得到明显强化，分别是纯TiO₂对活性黄、碱性品红染料饱和吸附量的4.893 4、1.203 7倍；在此混合废水中，H₂SO₄-TiO₂对活性黄染料去除表现出明显的选择性。

关键词: TiO₂, 染料废水, 吸附, 选择性

CLC Number:

X703

Wu Siqi, Wang Xun, Zhu Lei, Zhang Lening, Qin Bo, Wang Jing. Research on the adsorption enhancement and selectivity removal of dye wastewater by titanium dioxide[J]. INDUSTRIAL WATER TREATMENT, 2018, 38(11): 73-77.

吴思启, 汪恂, 朱雷, 张乐柠, 秦波, 王静. TiO₂对染料废水吸附强化及选择性去除研究[J]. 工业水处理, 2018, 38(11): 73-77.

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URL: https://www.iwt.cn/EN/10.11894/1005-829x.2018.38(11).073

https://www.iwt.cn/EN/Y2018/V38/I11/73

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