A kind of seaweed fiber metal complex photocatalyst and preparation method thereof
A technology of metal complexes and seaweed fibers, applied in the direction of organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problem of not easy biodegradable synthetic fibers, catalyst preparation process Complicated, unfavorable to the protection of the ecological environment and other issues, to achieve the effect of excellent reusable performance, conducive to industrialization promotion, and easy operation
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Embodiment 1
[0033] 1. Pretreatment process: Under the condition of room temperature and stirring, the seaweed fiber was first washed and treated with an aqueous solution of non-ionic surfactant with a concentration of 2.0g / L for 10 minutes, then taken out, and then washed with distilled water for 5 times. It can be dried under vacuum at 50°C;
[0034] 2. Preparation of iron-copper metal ion mixed solution: use copper sulfate and ferric chloride to prepare a mixed metal ion aqueous solution with a molar concentration of 0.10 mol / L, and the molar concentration ratio of iron ion and copper ion in this mixed aqueous solution is required to be 1: 0.33, that is, the volume concentrations of the ferric chloride aqueous solution and the copper sulfate aqueous solution are 0.075 mol / L and 0.025 mol / L, respectively. Then after standing the obtained mixed aqueous solution for 2-5 hours, filter for subsequent use;
[0035] 3. the coordination reaction of seaweed fiber and metal ion: pretreatment gai...
Embodiment 2
[0039] 1. The process is the same as that of Step 1 in Example 1, respectively.
[0040] 2. The molar concentration ratio of iron ions and copper ions in the metal ion mixed aqueous solution is adjusted to 1:1, that is, the volume concentrations of the ferric chloride aqueous solution and the copper sulfate aqueous solution are respectively 0.05 mol / L and 0.05 mol / L. The rest are the same as 2 in Example 1.
[0041] 3. The process is the same as step 3 in Example 1, respectively.
[0042] 4. The process is the same as step 4 in Example 1, respectively. The obtained yellow-green seaweed fiber metal complex catalyst is abbreviated as Cu-Fe-ALG-2. After measurement and calculation, the content of iron ion and copper ion in the catalyst Cu-Fe-ALG-2 was 61.26mg / g and 73.82mg / g, respectively. The dry fracture strength of the obtained catalyst was measured, and the obtained value was 220.54cN.
Embodiment 3
[0044] 1. The process is the same as that of Step 1 in Example 1, respectively.
[0045] 2. The molar concentration ratio of iron ions and copper ions in the metal ion mixed aqueous solution is adjusted to 1:3, that is, the volume concentrations of the ferric chloride aqueous solution and the copper sulfate aqueous solution are respectively 0.025 mol / L and 0.075 mol / L. The rest are the same as 2 in Example 1.
[0046] 3. The process is the same as step 3 in Example 1, respectively.
[0047] 4. The process is the same as step 4 in Example 1, respectively. The obtained yellow-green seaweed fiber metal complex catalyst is abbreviated as Cu-Fe-ALG-3. After measurement and calculation, the content of iron ion and copper ion in the catalyst Cu-Fe-ALG-3 was 33.52mg / g and 105.65mg / g, respectively. The dry fracture strength of the obtained catalyst was measured, and the obtained value was 221.49cN.
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