Mesoporous molecular sieve and molecular sieve host-guest nanocomposite materials are of great research interests recently. Compared with other molecular sieves, SBA-15 has thicker walls, larger pores and better hydrothermal stability and thermal stability. In this thesis, nanoscale mesoporous SBA-15 molecular sieve was prepared in acidic medium by using triblock copolymers (EG20PG40EG20) as template, tetraethoxysilane as silica resource. Materials dibromo-p-sulfonic acid arsenazo (DBS-ASA) and cadmium sulf...
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