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The structural and photocatalytic properties of TiO〓 as well as surface acidity were greatly improved by sulfation. SO〓〓/TiO〓 solid superacid with Hammett constant Ho less than -12.14 was prepared by treating the TiO〓 with 1.0mol. L〓 sulfuric acid solution and then calcining at 450℃ for 3h. When compared to unmodified TiO〓, the SO〓〓/TiO〓 superacid catalyst exhibited higher anatase content, smaller crystal size, higher specific surface area, centralized pore size distribution, and the blue-shifted band edge of uv-vis adsorption spectra. Furthermore, the SO〓〓/TiO〓 superacid also showed excellent reaction activity and stability for CH〓Br photocatalytic decomposition even under the moist reaction conditions. The apparent quantum efficiency of SO〓〓/TiO〓 was 10 times of that of TiO〓 catalyst for the photocatalytic degradation of bromomethane. Therefore, the SO〓〓/TiO〓 superacid catalyst is promising for practical application in environmental remediation.It was found that both L and B acid sites exist on SO〓〓/TiO〓 photocatalyst while only L acid sites on TiO〓 photocatalyst. On the basis of experimental results, the synergistic model of superacidic centers was proposed for SO〓〓/TiO〓 photocatalyst to explain the photocatalytic behavior and the mechanism of superacidifing effects, assuming that the adjacent L and B acid sites induced by SO〓〓 comprise cooperatively the superacidic center on superacid photocatalyst. The group cooperation of the superacidic center could strengthen the surface acidity, increase surface acid sites and the adsorbtion of O〓, promote separation of photogenerated electron-hole pair, enhance the interfacial transfer of charges and reversibility of water adsorption. Consequently the excellent photocatalytic activity, reaction stability and resistibility to humidity of SO〓〓/TiO〓 superacid photocatalyst may attributed to the group cooperated effect of the superacidic center on the photocatalyst.

研究结果表明:SO〓〓与TiO〓表面的结合为螯合式双配位结构;TiO〓光催化剂表面经H〓SO〓浸渍处理后,提高了表面酸性,改善了催化剂结构和光催化性能,当H〓SO〓浸渍浓度为1.0mol.L〓、烧结温度为450℃时,可制得SO〓〓/TiO〓超强酸催化剂(H〓<-12.14),其结构和光催化活性得到明显改善,与TiO〓相比,SO〓〓/TiO〓光催化剂的锐钛矿含量高、晶粒小、BET比表面积大、孔径分布集中、光谱吸收边蓝移,具有优异的光催化氧化活性、稳定性及抗湿性能,光催化降解溴代甲烷的表观量子效率比TiO〓催化剂提高了一个数量级,是一种有实际应用前景的高效光催化剂;由此提出了SO〓〓/TiO〓超强酸催化剂表面集团协同作用的超强酸中心模型,认为在SO〓〓/TiO〓超强酸催化剂表面,由SO〓〓诱导的相邻L酸中心和B酸中心组成了集团协同作用的超强酸中心,其集团协同作用显著地增强了催化剂表面酸性、增大了表面酸量及O〓吸附量、促进了光生电子和空穴的分离及界面电荷转移,具有可逆吸附水的性能,是SO〓〓/TiO〓超强酸催化剂具有优异的光催化氧化活性、很好的活性稳定性及抗湿性能的重要原因。

The apparent quantum efficiency of SO〓〓/TiO〓 was 10 times of that of TiO〓 catalyst for the photocatalytic degradation of bromomethane. Therefore, the SO〓〓/TiO〓 superacid catalyst is promising for practical application in environmental remediation.It was found that both L and B acid sites exist on SO〓〓/TiO〓 photocatalyst while only L acid sites on TiO〓 photocatalyst. On the basis of experimental results, the synergistic model of superacidic centers was proposed for SO〓〓/TiO〓 photocatalyst to explain the photocatalytic behavior and the mechanism of superacidifing effects, assuming that the adjacent L and B acid sites induced by SO〓〓 comprise cooperatively the superacidic center on superacid photocatalyst. The group cooperation of the superacidic center could strengthen the surface acidity, increase surface acid sites and the adsorbtion of O〓, promote separation of photogenerated electron-hole pair, enhance the interfacial transfer of charges and reversibility of water adsorption. Consequently the excellent photocatalytic activity, reaction stability and resistibility to humidity of SO〓〓/TiO〓 superacid photocatalyst may attributed to the group cooperated effect of the superacidic center on the photocatalyst.

研究结果表明:SO〓〓与TiO〓表面的结合为螯合式双配位结构;TiO〓光催化剂表面经H〓SO〓浸渍处理后,提高了表面酸性,改善了催化剂结构和光催化性能,当H〓SO〓浸渍浓度为1.0mol.L〓、烧结温度为450℃时,可制得SO〓〓/TiO〓超强酸催化剂(H〓<-12.14),其结构和光催化活性得到明显改善,与TiO〓相比,SO〓〓/TiO〓光催化剂的锐钛矿含量高、晶粒小、BET比表面积大、孔径分布集中、光谱吸收边蓝移,具有优异的光催化氧化活性、稳定性及抗湿性能,光催化降解溴代甲烷的表观量子效率比TiO〓催化剂提高了一个数量级,是一种有实际应用前景的高效光催化剂;由此提出了SO〓〓/TiO〓超强酸催化剂表面集团协同作用的超强酸中心模型,认为在SO〓〓/TiO〓超强酸催化剂表面,由SO〓〓诱导的相邻L酸中心和B酸中心组成了集团协同作用的超强酸中心,其集团协同作用显著地增强了催化剂表面酸性、增大了表面酸量及O〓吸附量、促进了光生电子和空穴的分离及界面电荷转移,具有可逆吸附水的性能,是SO〓〓/TiO〓超强酸催化剂具有优异的光催化氧化活性、很好的活性稳定性及抗湿性能的重要原因。

Purified water, octyl palmitate, castor oil phosphate, triethoxycaprylylsilane, glyceryl stearate, peg-100 stearate, isopropyl palmitate, cetearyl alcohol, vegetable glycerin, phenoxyethanol, benzyl alcohol, potassium sorbate, tocopherol, stearic acid, certified organic aloe barbadensis extract, certified organic lavandula angustifolia extract, avena sativa kernal flour, certified organic helianthus annuus seed oil, panthenol (vitamin B5), certified organic simmondsia chinensis seed oil, polysorbate 60, allantoin, certified organic chamomilla recutita flower extract, potassium cetyl phosphate, and xanthan gum.

纯水、辛基棕榈酸酯、蓖麻油磷酸盐、triethoxycaprylylsilane、硬脂酸锌,异丙酯、peg-100棕榈酸、cetearyl酒精、蔬菜甘油、萃取物、苯甲醇、山梨酸钾、生育酚、硬脂酸、有机认证索芦荟精华、有机认证此提取物、淡紫色沙枣阿韦纳处理(燕麦粉、有机认证的核心annuus的向日葵籽油、维他命原B5、泛醇经认证的有机simmondsia羊(霍霍巴籽油、polysorbate 60、尿囊素、有机认证chamomilla recutita洋甘菊三叶草萃取物、钾cetyl磷酸盐、黄原胶。

The results indicate that Ca(superscript 2+) and GA3, single or combined application treatments, promote cucumber seed germination treated with P. harmala alkaloid, increase germination rate, germination vigor and index; as well as α-amylase, protease, lipase, isocitratelyase, nicotinamide adenine dinucleotide kinase and Ca(superscript 2+)-ATPase activities; and GA and CaM content in cucumber seeds; but decrease abscisic acid content. The synergistic effects of combined Ca(superscript 2+) and GA3 on increasing GA and decreasing ABA are oberseved compared with Ca(superscript 2+) treatment.

结果表明,Ca(上标 2+)和GA3单一及复合处理可促进骆驼蓬生物碱处理的黄瓜种子的萌发,使黄瓜萌发率、发芽指数和活力指数提高,萌发种子的α-淀粉酶、蛋白酶、脂肪酶和异柠檬酸裂解酶活性及赤霉素和钙调素含量增加,烟酰胺腺嘌呤二核苷酸激酶和Ca(上标 2+)-ATP酶活性增强,脱落酸含量降低;且Ca(上标 2+)和GA3复合处理对GA含量的提高和ABA含量的降低与Ca(上标 2+)单一处理比较呈显著的加成作用。

Highly ordered SBA-15 sieves have been successfully synthesized in a low concentration liquid inorganic acid medium via the addition of small amounts of phosphomolybdic acid.

通过在低浓度无机液体酸介质中添加少量磷钼酸,成功地合成了高度有序的SBA-15介孔分子筛。N2吸附-脱附、XRD、TEM和水热稳定性实验等检测结果表明:用这种方法不仅可以大幅度降低合成SBA-15分子筛所需液体酸的用量和缩短晶化时间,同时反应产物SBA-15在100℃的水中处理72h后仍然保持六方有序的介孔结构

The treatment process of liquid waste in synthesis of cuprous thiocyanate by use of sulfocyanide ion existed in the liquid waste of potassium rhodanate was investigated.

硫氰酸实验研究了利用硫氰酸钾生产废液中的硫氰酸根制备硫氰酸亚铜过程中合成废液及洗涤废水无害化处理技术。

A series of SiW_(12)/AC catalysts with different silicotungstic acid loadings supported on acti- vated carbon which was treated with 10% HNO_3 solution were prepared by an impregnation method and the catalytic performance of SiW_(12)/AC for the synthesis of trioxane were investigated.

以10%硝酸溶液处理过的活性炭为载体,采用不同质量分数的硅钨酸SiW_(12溶液为浸渍液,制备了不同负载量的SiW_(12)/AC催化剂,考察了催化剂在合成三聚甲醛中的催化性能,并用XRD、FT-IR、NH_3- TPD、BET、TG-DSC等手段对SiW_(12)/AC催化剂晶粒大小、催化剂表面的酸量及酸强度、比表面积及热稳定性等微观特性进行了表征。

Our company specializes in operating plating materials: sulfamic acid nickel, nickel sulphate, nickel chloride, nickel carbonate, etc.; environmentally friendly sewage treatment materials: polyacrylamide, polypropylene acid sodium, ferrous sulfate, etc.; washing cleaning materials: OP - 10, TX-10, NP-9, K-12, JFC, sodium carboxymethyl cellulose, etc.; cosmetic raw materials: Triclosan, Resorcinol, stearic acid and so on, basic chemical raw materials: Industrial salt, soda ash industrial ammonium chloride, ammonium chloride agriculture, Sodium Sulfate, Sodium Molybdate, Ammonium Molybdate, as well as chemical products such as UV-absorbers.

本公司专业经营电镀原料:氨基磺酸镍,硫酸镍,氯化镍,碳酸镍等;环保污水处理原料:聚丙烯酰胺,聚丙烯酰钠,硫酸亚铁等;洗涤清洗原料:OP-10,TX-10,NP-9,K-12,JFC,羧甲基纤维素钠等;化妆品原料:三氯生,间苯二酚,硬脂酸等,基础化工原料:工业盐,纯碱,工业氯化铵,农业氯化铵,元明粉,钼酸钠,钼酸铵等以及紫外线吸收剂等化工产品。

The results showed that 22.5μL/L of clove leaf oil had the best preservation effect on peach. After 35 days of stock, the sound fruit rate was 94%, 46.9% higher than compared group. The rotten index and the browning index were 94.1% and 85.2% lower than the control, respectivly, and the treatment could remarkablely reduce the respiration rate and ethylene release, and postponed ethylene release peak and respiration peak 5 and 10d, respectively in comparison with CK, it also delayed the drop of firmness and contents of titrable acids of the peach. When stored for 35d, firmness of control group and 22.5μL/L of clove leaf oil were decreased 60% and 34% compared with initial storage, and the activities of SOD, CAT and POD were enhanced, but the contents of SSC had no obvious difference with control.

结果表明,与对照相比,22.5μL/L丁香叶油处理对桃果实的防腐保鲜效果最好,贮藏35d时好果率为94%,比对照提高了46.9%,腐烂指数和褐变指数分别比对照低94.1%和85.2%;丁香叶油处理可以有效降低桃果实的呼吸强度和乙烯释放量,呼吸强度高峰和乙烯释放量高峰分别推迟5和10d,延缓了果实硬度和可滴定酸含量下降的速度;贮藏35d时对照和22.5μL/L丁香叶油处理果实硬度分别比贮藏初期降低了60%和34%;丁香叶油处理提高了超氧化物歧化酶、过氧化氢酶、过氧化物酶3种膜脂过氧化物酶的活性,但可溶性固形物含量与对照相比无明显差异。

In this paper, the preparations, analytical methods, physical characteristics of ferrates and the application of ferrates in the fields of synthesis of organic compounds, treatment of waste water and the usage as cathode material in alkaline batteries are summarized. The electrochemical preparation of sodium ferrate is described and the relationships between the main parameters in the process are deeply investigated. One method of in-situ electrosynthesizing potassium ferrate of high purity with both high efficiency and low energy consumption is invented. The cyclic voltammogram and feature characterization of iron anode in alkaline solutions is studied. One preparation method of ex-situ electrosynthesizing tripotassium sodium ferrate of high purity is created.

本文概述了高铁化合物的制备方法、分析方法、物理化学性质及其在氧化合成有机物、水处理和用作碱性电池正极材料等领域的应用;深入系统地研究了高铁酸钠的电化学制备及其影响参数之间的关系;研发了一种高效率低能耗直接电合成高纯度高铁酸钾的工艺方法;探讨了铁电极在浓的苛性碱溶液中的循环伏安特征及其极化特征;研发了一种电化学制备高铁酸三钾钠的工艺方法并用多种现代分析测试技术对K_3Na(FeO_4,)_2进行了表征。

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