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Green Energy & Environment 2023年第5期8卷 1389-1397页

作者： wei-Shi Sun Ming-Jie Yin Wen-hai Zhang Shuo Li Naixin Wang Quan-Fu An Beijing Key Laboratory for Green Catalysis and Separation Department of Environmental and Chemical EngineeringBeijing University of TechnologyBeijing100124China

Emerging excessive greenhouse gas emissions pose great threats to the ecosystem,which thus requires efficient CO_(2)capture to mitigate the disastrous *** this report,large molecular size bisphenol A ethoxylate diacrylate(BPA)was employed to crosslink poly(ethylene glycol)methyl ether acrylate(PEGMEA)via the green and rapid UV polymerization *** microstructure of such-prepared membrane could be conveniently tailored by tuning the ratio of the two prepolymers,aiming at obtaining the optimized microstructures with suitable mesh size and PEO sol content,which was approved by a novel low-field nuclear magnetic resonance *** optimum membrane overcomes the tradeoff challenge:dense microstructures lower the gas permeability while loose microstructures lower high-pressure-resistance capacity,realizing a high CO_(2)permeability of 1711 Barrer and 100-h long-term running stability under 15 *** proposed membrane fabrication approach,hence,opens a novel gate for developing high-performance robust membranes for CO_(2)capture.

关键词： CO_(2)capture PEO membrane Membrane microstructures PEO sol Photo-crosslinking

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加压氧化处理黄金冶炼氰化废水

有色金属（冶炼部分） 2024年第10期 147-153页

作者：董文强谢锋王伟白云龙高腾跃李光胜东北大学冶金学院沈阳110819 山东黄金矿业科技有限公司选冶实验室分公司山东烟台261441

采用加压氧化方法对黄金冶炼氰化废水进行脱氰处理,研究了反应温度、氧分压、处理时间及酸度等对加压氧化降解氰化废水中总氰、硫氰根及重金属离子脱除规律的影响。结果表明,提高反应温度、氧分压、反应时间和酸度均有利于含氰废水中总... 详细信息

采用加压氧化方法对黄金冶炼氰化废水进行脱氰处理,研究了反应温度、氧分压、处理时间及酸度等对加压氧化降解氰化废水中总氰、硫氰根及重金属离子脱除规律的影响。结果表明,提高反应温度、氧分压、反应时间和酸度均有利于含氰废水中总氰的脱除,当反应温度80℃、氧分压0.3 MPa、反应时间1 h、酸化时浓硫酸用量0.31 mol/L时,总氰降至22.2 mg/L,静置两天后进一步降至7.73 mg/L,SCN-降至13.8 g/L,Cu降至30.3 mg/L,Fe降至3.21 mg/L,Zn降至2.2 mg/L。铜、铁、锌几乎全部分别以Zn3(Fe(CN)6)2、Cu2Fe(CN)6·2h2O和Fe4(Fe(CN)6)3的形式固定在沉淀物中,进而降低黄金冶炼废水的毒性。降解处理后的废水经调节ph后返回金矿氰化浸出工序,实现废水循环再利用。

关键词：加压氧化含氰废水协同沉淀

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川式美味牛肝菌香肠制作工艺及品质特性研究

美食研究 2024年第3期41卷 80-87页

作者：郭宁静徐流芳李翔邹星辰王卫张育贤陈金凤成都大学食品与生物工程学院四川成都610106 肉类加工四川省重点实验室四川成都610106 巴中市巴山牧业股份有限公司四川巴中367000 四川省成都红灯笼食品有限公司四川成都611732

为推动美味牛肝菌产业的发展,助力乡村振兴,利用单因素和正交试验优化川式香肠制作工艺,并探究添加美味牛肝菌对川式香肠理化指标及风味的影响。结果表明:川式美味牛肝菌香肠最佳制作工艺为美味牛肝菌15.0%,辣椒粉1.5%,花椒粉0.8%,烘烤... 详细信息

为推动美味牛肝菌产业的发展,助力乡村振兴,利用单因素和正交试验优化川式香肠制作工艺,并探究添加美味牛肝菌对川式香肠理化指标及风味的影响。结果表明:川式美味牛肝菌香肠最佳制作工艺为美味牛肝菌15.0%,辣椒粉1.5%,花椒粉0.8%,烘烤时间48 h,该成品的感官综合评分为40.12分;与未添加美味牛肝菌的川式香肠(CK)相比,川式美味牛肝菌香肠(NG)的蛋白质、脂肪含量显著降低(P<0.05),水分含量显著升高(P<0.05);脂肪氧化检测结果显示添加美味牛肝菌减缓了川式香肠的脂肪氧化速度,从而延长了贮藏期;GC-MS共检测出65种化合物,其中NG特有关键挥发性风味物质有6种,分别是庚醛、3-甲硫基丙醛、2,3-丁二醇、橙花醇、反式-橙花叔醇、3-辛酮,它们赋予川式香肠花香、蘑菇香、果香、脂肪味。该试验结果为美味牛肝菌精深加工及川式香肠产品多元化发展提供理论参考。

关键词：川式香肠美味牛肝菌营养成分脂肪氧化风味物质

Investigation of meso-failure behaviors of Jinping marble using SEM with bending loading system

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Journal of Rock Mechanics and Geotechnical Engineering 2015年第5期7卷 593-599页

作者： Jianping Zuo xu wei Jianliang Pei xiaoping Zhao School of Mechanics and Architectural Engineering China University of Mining and Technology State Key Laboratory of Coal Resources and Safe Mining China University of Mining and Technology College of Water Resources and hydropower Sichuan University

In th is study, th e m eso-failure m ech an ism an d fracture surface o f Jinping m arble w ere investigated bym ean s o f scanning electro n m icroscope （SEM） w ith ben d in g loading system and laser-scanner equipment. The Y antang an d B aishan m arbles specim ens from Jinping II hyd ro p o w er sta tio n w ere used. Testresu lts show th a t th e fracture to u g h n ess and m echanical behaviors o f Y antang m arble w ere basicallyh ig h er th a n th o se o f Baishan m arble. This is m ainly d u e to th e fact th a t Baishan m arble co n tain s a largep ercen tag e o f d o lom ite an d m in o r mica. Crack pro p ag atio n p a th and fracture m orphology in d icated th a tth e d irection o f ten sile stress has a significant effect on th e m echanical behaviors an d fracture toughnesso f B aishan m arble. For Yantang an d B aishan m arbles, a large n u m b e r o f m icrocracks a ro u n d th e m aincrack tip w ere observed w h e n th e directio n o f ten sile stress w as parallel to th e bed d in g plane.C onversely, few m icrocracks o ccurred w h e n th e directio n o f ten sile stress w as p erp en d icu lar to th ebed d in g plane. The presen ce o f a large n u m b e r o f m icrocracks a t th e m ain crack tip d ecreased th e globalfracture to u g h n ess o f m arble. The results o f th re e -p o in t ben d in g te sts show ed th a t th e average bearingcapacity o f intact m arble is 3.4 tim es th e notch ed m arble, b u t th e ductility p ro p e rty o f th e defectivem arble afte r p eak load is b e tte r th a n th a t o f th e intact m arble. h ence, large d efo rm atio n m ay beg en erated before failure o f in tact m arbles a t Jinping II h y d ro p o w er station. The fractal d im en sio n o ffracture surface w as also calculated by th e cube covering m eth o d . O bservational resu lt show ed th a t th elargest fractal dim en sio n o f Y antang m arble is cap tu red w h e n th e directio n o f ten sile stress is parallel toth e bedding plane. h ow ever, th

关键词： Jinping marble Bedding plane Meso-failure mechanism Scanning electron microscope (SEM) In-situ observation

Recovery of silica from sodium silicate solution of calcined boron mud

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Rare Metals 2016年第2期35卷 204-210页

作者： Zhi-Qiang Ning Yu-Chun Zhai hong-wei xie Qiu-Shi Song Ka Yu School of Materials and Metallurgy Northeastern University

The effect of several parameters on the recovery of silicon dioxide from calcined boron mud（CBM）such as stirring speed, temperature, sodium silicate concentration, and carbonation time was studied. The recovery of silicon dioxide is 88 % when the stirring speed is450 r min-1, temperature is 60 °C, sodium silicate concentration is 1 mol L-1, and the carbonation time is 6 *** effect of carbonation time on the recovery of silicon dioxide is divided into three kinetic regimes, and the carbonation process of sodium silicate solution follows a second-order reaction based on the double-film theory model. The apparent rate constant of the three kinetic regimes is 0.064, 3.178, and 1.130 L h mol-1, *** amorphous SiO_2 products obtained by carbonating the purified solution have 99.6 % purity and are spherical with diameters of about 100 nm.

关键词： Boron mud Carbonation Recovery Silicon dioxide

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蓝莓果渣花色苷提取纯化工艺研究

中国调味品 2024年第3期49卷 175-181页

作者：张芷瑜张天伟杨馥菡李会珍张志军中北大学化学与化工学院太原030051 中北大学晋中产业技术创新研究院山西晋中030600

蓝莓果渣中的花色苷经超声辅助乙醇法进行提取,通过正交试验确定提取的最优条件为料液比1∶30(g/mL)、ph 3.0、乙醇体积分数50%、超声时间30 min,然后利用大孔树脂对粗提得到的花色苷进行分离纯化,对比了xDA-6、Lx-16、Lx-41、Lx-180S、... 详细信息

蓝莓果渣中的花色苷经超声辅助乙醇法进行提取,通过正交试验确定提取的最优条件为料液比1∶30(g/mL)、ph 3.0、乙醇体积分数50%、超声时间30 min,然后利用大孔树脂对粗提得到的花色苷进行分离纯化,对比了xDA-6、Lx-16、Lx-41、Lx-180S、LK825、DM216种大孔树脂的吸附和解吸效果。结果表明,LK825型大孔树脂的吸附率和解吸率分别为90.36%、90.19%,具有较强的吸附能力和较好的解吸性能,故选用LK825型大孔树脂进行纯化试验。LK825型大孔树脂静态试验的最优条件为吸附平衡时间7 h、解吸平衡时间5 h、提取液ph 3.0、解吸液ph 3.0、解吸液乙醇体积分数60%。动态试验的最优参数为上样流速1.0 mL/min、上样液体积22 BV、上样浓度1.0 mg/mL、洗脱流速1.5 mL/min、解吸液体积9 BV。纯化后蓝莓果渣花色苷的含量和色价分别是纯化前的12.8倍和17.9倍,纯度明显提高。

关键词：蓝莓果渣花色苷提取纯化

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Plasmon Assisted highly Efficient Visible Light Catalytic CO_(2) Reduction Over the Noble Metal Decorated Sr-Incorporated g-C_(3)N_(4)

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Nano-Micro Letters 2021年第12期13卷 416-433页

作者： Muhammad humayun habib Ullah Lang Shu xiang Ao Asif Ali Tahir Chungdong Wang wei Luo School of Optical and Electronic Information Wuhan National Laboratory for OptoelectronicsEngineering Research Center for Functional Ceramics of the Ministry of EducationHuazhong University of Science and TechnologyWuhan 430074People’s Republic of China Environment and Sustainability Institute University of ExeterCornwallPenryn TR109FEUK

The photocatalytic performance of g-C_(3)N_(4) for CO_(2) conversion is still inadequate by several shortfalls including the instability,insu cient solar light absorption and rapid charge carrier's recombination rate. To solve these problems,herein,noble metals(Pt and Au)decorated Sr-incorporated g-C_(3)N_(4) photocatalysts are fabricated via the simple calcination and photo-deposition methods. The Sr-incorporation remarkably reduced the g-C_(3)N_(4) band gap from 2.7 to 2.54 eV,as evidenced by the UV–visible absorption spectra and the density functional theory results. The CO_(2) conversion performance of the catalysts was evaluated under visible light irradiation. The Pt/0.15 Sr-CN sample produced 48.55 and 74.54 μmol h-1 g-1 of Ch_(4) and CO,*** amounts are far greater than that produced by the Au/0.15 Sr-CN,0.15 Sr-CN,and CN samples. A high quantum e ciency of 2.92% is predicted for the Pt/0.15 Sr-CN sample. Further,the stability of the photocatalyst is confirmed via the photocatalytic recyclable test. The improved CO_(2) conversion performance of the catalyst is accredited to the promoted light absorption and remarkably enhanced charge separation via the Sr-incorporated mid gap states and the localized surface plasmon resonance e ect induced by noble metal *** work will provide a new approach for promoting the catalytic e ciency of g-C_(3)N_(4) for e cient solar fuel production.

关键词： g-C_(3)N_(4) Sr-incorporation Noble metal deposition Density functional theory Energy applications

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枸橼酸西地那非口崩片含量均匀度的测定

华西药学杂志 2024年第3期39卷 324-326页

作者：王一帆樊丽娟肖峰张玲余仕金张伟昆明医科大学药学院云南省天然药物药理重点实验室云南昆明650500 云南龙津康佑生物医药有限公司云南昆明650503 昆明龙津药业股份有限公司云南昆明650503

目的采用UV法测定枸橼酸西地那非口崩片的含量均匀度。方法以0.01 mol·L^(-1)盐酸为溶剂,在292 nm处用紫外分光光度计快速测定枸橼酸西地那非口崩片的含量均匀度。结果11.14~39.89μg·mL^(-1)枸橼酸西地那非对照品与吸光度呈良好的线... 详细信息

目的采用UV法测定枸橼酸西地那非口崩片的含量均匀度。方法以0.01 mol·L^(-1)盐酸为溶剂,在292 nm处用紫外分光光度计快速测定枸橼酸西地那非口崩片的含量均匀度。结果11.14~39.89μg·mL^(-1)枸橼酸西地那非对照品与吸光度呈良好的线性关系;平均回收率为101.42%,RSD为0.40%;配制的样品溶液在8 h内稳定;3批枸橼酸西地那非口崩片的含量均匀度均在合格范围内,A+2.2S分别为3.54、1.98、2.70,与hPLC法比较无明显差异。结论所用方法操作简便快速、经济、重复性良好,可用于枸橼酸西地那非口崩片含量均匀度的测定。

关键词：枸橼酸西地那非口崩片含量均匀度 UV法高效液相色谱法磷酸二酯酶5 质量控制

Difference of sintering performance of different types of limonitic nickel laterite

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Journal of Iron and Steel Research International 2023年第1期30卷 21-30页

作者： Yu-xiao xue Jian Pan De-qing Zhu xin Wang Bo-hua Li wei Liu School of Minerals Processing and Bioengineering Central South UniversityChangsha 410083HunanChina

To achieve the more extensive utilization of limonitic nickel laterite,the difference of sintering performance of different types of limonitic nickel laterite including high-gangue and low-gangue nickel ores was investigated by sinter pot tests and relevant mechanism analyses such as thermodynamic analysis and the chemistry and mineralogy of product *** the type of limonitic nickel laterite transformed from high-gangue to low-gangue nickel ore,tumble index and productivity are improved from 45.87%and 0.97 t m^(-2) h^(-1) to 50.16%and 1.05 t m^(-2) h^(-1),respectively,and solid fuel rate is reduced from 140.52 to 131.13 kg/t,indicating that the low-gangue nickel ore possesses relatively better sintering *** is mainly due to the fact that the much lower contents of MgO and Al2O3 improve the formation ability and fluidity of liquid phase,which eventually contributes to the formation of relatively tighter sinter microstructure with the lower sinter porosity,more silico-ferrite of calcium and alumina amount and better bonding of hercynite by liquid *** addition,the metallurgical performance and nickel content of product sinter would not be reduced as different types of limonitic nickel laterite are blended for *** this basis,it is entirely feasible to more widely utilize limonitic nickel laterite and simultaneously obtain much better-quality Ni-containing product sinter via effective sintering strengthening technologies.

关键词： Limonitic nickel laterite Sintering Stainless steel high-melting component Extensive utilization

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高盐含酚工业废水的脱酚工艺研究与优化

现代化工 2024年第S1期44卷 201-206,212页

作者：张潆心蒋文伟焦高成彭小双曾鸿锟四川大学化学工程学院四川成都610207 昊华宇航化工有限责任公司河南焦作454002

研究了磷酸三丁酯(TBP)-煤油体系在对硝基苯酚(PNP)工业废水中的萃取工艺,TBP与PNP主要形成1∶1型的络合物,萃取过程的Δh=-28.21 kJ/mol,废水中盐的存在对络合萃取有正向影响。采用单因素实验法考察了萃取剂浓度、搅拌转速、有机相/水... 详细信息

研究了磷酸三丁酯(TBP)-煤油体系在对硝基苯酚(PNP)工业废水中的萃取工艺,TBP与PNP主要形成1∶1型的络合物,萃取过程的Δh=-28.21 kJ/mol,废水中盐的存在对络合萃取有正向影响。采用单因素实验法考察了萃取剂浓度、搅拌转速、有机相/水相的体积比(O/A)对脱酚率以及化学需氧量(COD)去除率的影响。根据单因素实验结果,设计三因素三水平Box-Behnken模型进行响应面优化实验。实验结果表明,响应面优化后的最优工艺条件为:TBP浓度为28%,搅拌转速为187 r/min,相比为0.6,该条件下脱酚率为99.97%,单级萃取后萃余水相酚含量为0.12 mg/L。

关键词：磷酸三丁酯对硝基苯酚响应面含酚废水