地下水中的砷污染是许多水处理的主要问题 世界各地的设施。众所周知，As（III）的毒性比As（V）和 砷的有机形式。各种处理技术已被应用于去除污染物 饮用水中的砷，如混凝沉淀、反渗透、离子交换 交换和吸附过滤。吸附过程通常被认为是 As（V）最有效的治疗形式，但其治疗能力有限 删除As（III）。为了提高吸附过程对As（III）的去除效率，本研究 研究的重点是开发高度有序的介孔吸附剂（HOMA）。 制造HOMA中As（III）反应位点的一种方法是加入纳米尺度的 二氧化钛（TiO₂）转化为介孔硅酸盐分子筛，如SBA-15。 另一种方法是通过制备介孔二氧化钛（MT）来制备O-Ti-O位点。 在不同初始pH（4,7,9.5）下进行动力学试验，以评估As（III） 两种HOMA的吸附速率和最终吸附容量。更大范围的 在较高的pH值下观察到介孔二氧化钛的吸附，但硅酸盐分子 含有二氧化钛的筛子在中间产物中对As（III）的去除率最高 pH值（pH值7）。包括10个参考文献、图表。

Arsenic contamination in groundwater is of major concern to many water treatment facilities in the world. It is generally known that As(III) is more toxic than As(V) and organic forms of arsenic. Various treatment technologies have been applied to remove arsenic from drinking water such as coagulation-precipitation, reverse osmosis, ion exchange, and adsorption-filtration. Adsorption processes are often considered to be the most effective forms of treatment for As(V), but they can be limited in their ability to remove As(III). To enhance removal efficiency of adsorption process for As(III), this study has focused on developing highly ordered mesoporous adsorbents (HOMAs). One approach for fabricating reactive sites for As(III) in HOMAs is to incorporate nanoscaled titania (TiO₂) into a mesoporous silicate molecular sieve such as SBA-15. Another approach is to fabricate O-Ti-O sites by producing mesoporous titania (MT). Kinetic tests at different initial pH (4, 7, 9.5) were conducted with As(III) to evaluate rates of adsorption and ultimate sorption capacity of two HOMAs. Greater extents of adsorption were observed at higher pH for mesoporous titania, but silicate molecular sieve with incorporated titania showed the most removal of As(III) at the intermediate pH (pH 7). Includes 10 references, figures.