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Photocatalytic Reduction of CO2 Using Cu/S-TiO2 Prepared by Electroless Plating Method Zheng Wang1, a, Fenfen Li2, b, Cheng Yang*1, c, Wenyu Zhang2, d, and Jinhu Wu1, e 1 Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Science, Qingdao, 266101, P.R.
China 2School of Chemical Engineering, Shandong Institute of Light Industry, Jinan, Shandong,250300, P.R.China awangzheng@qibebt.ac.cn, blifenfen19870302@163.com, cyangcheng@qibebt.ac.cn, dzhangwy051028@126.com, ewujh@qibebt.ac.cn Keywords: CO2, Photocatalytic reduction, Electroless plating, Cu/S-TiO2 Abstract.
The Cu/S-TiO2 material was pressed on the catalyst disk and put into the IR cell.
Results and discussion Fig.3 shows the XRD patterns of the S-TiO2 and Cu/S-TiO2 materials, with TiO2 as comparison.
The three characteristic diffraction peaks of anatase TiO2 at 2θ= 25.28o, 37.80o, 48.05o, were observed for all materials, and anatase phase TiO2 could perform the photocatalytic activity.

Solar heating and nocturnal cooling system integrated in refurbished buildings Baoquan Yin1,a, Yiping Wang1,2,b, Li Zhu1,c*, Yong Cui3 1School of Architecture, Tianjin University, Tianjin 300072, China 2School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China 3 Architecture Design Institute of Tianjin University, Tianjin 300072, China aemail:bqy_tj@163.com, bemail:wyp_56@tju.edu.cn, cemail:zly_tj@163.com Keywords: solar heating; nocturnal cooling; radiant panel; heat pump; refurbished buildings; low temperature difference terminals Abstract: Green energy system for the old building retrofitting for energy efficiency upgrade was proposed in this paper, which was composed by solar radiant panels, energy storage, multi-source heat pump and low temperature difference energy supplier.
Overview of proposed system By using solar radiation and nocturnal radiation integrated with indoor terminal and subsystem, radiant panels were put forward to use functionalized traditional construction materials as components in panels.
Radiant panels Radiant panel is the key part of the novel solar heating and cooling system, which is responsible for absorbing solar heat and dissipating heat to the ambient [3].
The radiant piping is constructed between the structure wall and the thermal insulation material, which also contains the heat exchanger with an extended surface in the external tile for heat transfer and reinforced external insulation layer, the system structure see fig 9.
Discussions and Conclusion The radiant panel with both heating and cooling function can be used as a part of structural materials for the building envelope in the building refurbishment, which would realize the perfect integration of building and solar energy technology.

All these systems were tested in an experiment with the following conditions: type of the permanent magnets, N33M (Br = 1.17T and Hc = 876kA/m); magnet sizes, 13x13x3 mm; magnetic circuits, shunts and pole pieces, made from steel alloy SM45C/SM20C; material of the ferromagnetic base plate, steel alloy SM45C with height, 5mm; material of the non-magnetic base plate, aluminum alloy; and measuring instrument, Gaussmeter, model 9640 F.
The change in the shunt material to steel SM20C from SM45C did not significantly improve the "switching off" quality.
"Advances in Abrasive Technology YIII," Key Engineering Materials, Switzerland: TTP, 2005, Vols. 291-292, pp. 297-302 (Eng

The complexity is not only in quantity, but also in a variety of sizes and materials.
At the same time, information processes are not the end in themselves; their aim is the ultimate control of material flows and their interaction.
AIS of rolls handling facility management will allow to evaluate a number of key indicators that reflect the system's efficiency.
Tretyakov, Rolls of roughing, section, and sheet mills, Moscow, SP INTERMET ENGINEERING, 1999
Kinzin, Improvement of the slitting process for rebar rolling to increase the material yield and rolling mill 370 utilization at PJSC MMK.

Developing a servo motor drive technology with instantaneous heavy load, good control characteristics, superior servo tracking performance is the key[3-14].The load of presses is the impact load, in order to avoid the main power network power fluctuating, short-term heavy load of the servo press driver must provide an energy management device, and the energy stored directly in the side of press, The required peak energy for molding is offered directly from this energy device.
Fig.1 The overall structure block diagram of servo press Parameter Design Different materials and processes require different modes of servo press, the capacitor energy storage device act as power source of a press drive system, energy storage parameter is closely related with the operating mode of press.
In the starting process, the capacitor energy storage device should provide the energy for the motor when it starts normally within rated speed; in the stamping process, as an energy management device of a dedicated drive system of the servo press, capacitor storage parameters should meet the required power and control requirements of the motor at a speed stamping, and this punch speed is determined by the material properties and processes of the processing object.
Table 2 Simulation data of starting process after being improved servo motor drive speed（r/min） 450 400 350 320 450 400 350 three-phase input reactor（mH） 1.4 1.4 1.4 1.4 1.4 1.4 1.4 reservoir capacitance (F) 0.05 0.05 0.05 0.05 0.05 0.05 0.05 maximum load torque（N.M） 3875 3875 3875 3875 3875 3875 3875 speed loop proportional coefficient 200 200 200 200 2 3.5 8 starting acceleration torque overload multiples 1.2 1.5 2.4 4 4 4 4 the bus voltage value at the end of starting（V） 446.6 444.5 439.4 433.5 447.0 444.5 445.5 rectifier bridge output current maximum in the starting process（A） 114 115 117.4 117.4 114.4 118 115 servo motor drive speed steady-state error（%） <0.1 <0.1 <0.1 <0.1 6 4 2 Analysis of output ability In order to make press adapt the processing of different materials, permanent magnet synchronous motor drive system should be able to give sufficient torque to meet the power requirements of a variety of load.
[7] Bojan Vohar, Karl Gotlih, Optimization of Link-Drive Mechanism for Deep Drawing Mechanical Press[J], Journal of Mechanical Engineering, 2002,48(11),:601-612

Classification of promoting mechanism of circular economy Circular economy is a complicated system engineering, which involves a very complex level, members of its participation in society is also very extensive.
The eastern region including Shanghai, Jiangsu, Guangdong and other regions, these areas are mainly from the west to buy resources and energy and other raw material to develop economy.
The western regions including Guizhou, Inner Mongolia, Ningxia and other regions, material input level of these areas is relatively low, high resource consumption and waste emissions, low level of material recycling, and often rely on the excessive consumption of natural resources and environment to develop economy.
Circular economy concept has not yet universal, lack of key generic technology, supporting policy and system is not perfect, leading to enterprise to develop circular economy practice's enthusiasm is not high, and the public participation ability and consciousness is not strong.
The government should actively engaged in financial and material resources, advocate the participation of society.

Study of Ozone Decomposition Using TiO2-Graphene Composites Xin Tan1,a ,Qianqian Shang2, Siyu Wang3 1 School of Tibet University, Tibet, 850000, China. 2School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China 3 chinese reseach Academy of environmental sciences.
One possible way to utilize these properties in various applications is to incorporate graphene sheets in composite materials.
How to fabricate TiO2/grapheme composites with TiO2 nano-particles that are uniformly dispersed on single-layer graphene nano-sheets and with a large surface area can improve their photocatalytic activity by increasing the number of active site and the accessibility of active sites to the substrate are key points. graphene-semiconductor nanoparticles composites were synthesized by various methods and their photocatalystic properties were studied.
It can be explained that Gn possessed laedge surface area and regular ring structure, resulting in a very strong adsorption performance composite materials when Free State ozone molecules adsorbed on the surface of TiO2/Gn composites It should be pointed out that the excellent ability of electron transfer due to the prominent conductivity of graphene can inhibit the recombination of photogenerate electron and hole pairs, which induce the enhancement of ozone photodecomposition greatly.
Above phenomenon can be explained that graphene is a competitive candidate as an acceptor material due to its π-conjugation structure, thus in TiO2/Gn system, the excited electrons of TiO2 could transfer from the conduction band to grapheme, which results in more reactive species formation and promotes the ozone photodecomposition.

Wang1,2,g 1Tubular Goods Research Institute of China National Petroleum Corporation, Xi’an, Shaanxi, China 2State Key Laboratory of Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, Xi’an Shaanxi, China a*lucaihong@cncp.com.cn, bhanlihong@cnpc.com.cn, cfengchun003@cnpc.com.cn, dxuxin@cnpc.com.cn, eYangshangyu@cnpc.com.cn, fZhulijuan@cnpc.com.cn, gwangxinhu@cnpc.com.cn Keywords: Failure analysis, 80SS tubing, acid corrosion, H2S corrosion Abstract.
(a) (b) Fig. 1 Macro-morphology of corroded to leakage tubing (a) the 384th tubing (b) the 387th tubing Material and Analysis Methods The diameter of failure 80SS tubing was 73.02 mm, the thickness was 5.51 mm, and the chemical compositions are shown in Table 1，the contents of P and S elements met the requirement of API 5CT.
However, tensile strength and yield strength are lower, and there are over sized thick D type inclusions in the metallographic micro-structure of the material, which is not allowed in the technical requirements.
In the environment of acidic solution in which H2S, Cl-, and H+ coexist, and the liquid-gas phase region, the inner wall of the tubing was corroded, and local corrosion was accelerated due to fluctuations in ion concentration or material defects (oversized inclusions, upper bainite structure).
Engineering Failure Analysis.2011,18(8):2222-2231

School of Municipal & Environmental Engineering, Harbin Institute of Technology, Harbin, 150090, China 3.
Other potential mechanisms included the altered microbial community, longer sludge retention time, and accumulation of persistent materials.
Material and Methods 2.1 Material Wastewater was obtained from a local drainage well.
Hazardous Materials, 192 ( 2011), pp. 93–98 [11] J.
Hazardous Materials, 164(2009), pp. 1105-1109

Revell, A massively parallel multiscale CAFE framework for the modelling of fracture in heterogeneous materials under dynamic loading, Advances in Engineering Software (2019) 1-14
Zhang, CAFE based multi-scale modelling of ductile-to-brittle transition of steel with a temperature dependent effective surface energy, Materials Science & Engineering A. 755 (2019) 220-230
Ruiz Mendoza, Cleavage micromechanisms study in a ship plate steel through four-point double-notch bend and Charpy tests, Key Engineering Materials 944 (2022) 13-37
Zhanga, CAFE based multi-scale modelling of ductile-to-brittle transition of steel with a temperature dependent effective surface energy, Materials Science & Engineering A. 755 (2019) 220–230
Revell, A massively parallel multiscale CAFE framework for the modelling of fracture in heterogeneous materials under dynamic loading, Advances in Engineering Software 139 (2020) 102737