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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

Consequently, industrial desalination has become a key focus in the water industry over recent decades.
Four approaches can be employed to prevent silica scale in RO systems: the pretreatment of feed solution, the addition of antiscalant, the optimization of operational parameters and the functional modification of membrane materials [10,11]. 1.1.
One of the key elements influencing the precipitation of metal silicate is pH.
Materials and Methods: The pilot study method 1 the pilot module is an RO system consisting of: 1.
Materials Sodium sulfite (Na2SO3, AR) was sourced from Tianjin Kermel Chemical Reagent Co., Ltd.

The Application of METSIM in Hydrometallurgy Process: A Case Study Yeqing Lv1,2,a, Shili Zheng2,b, Hao Du2,c, Shaona Wang and Yi Zhang 1National Engineering Research Center of Distillation Technology, Tianjin University, 300072, China 2National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China aemail: lvyeqing1987@163.com, bemail: slzheng@home.ipe.ac.cn, cemail: duhao121@hotmail.com Key words: process simulation, METSIM, hydrometallurgy, application Abstract: In this paper, the simulation of a typical hydrometallurgy process using METSIM has been discussed, and the function of METSIM in calculating mass balance for different hydrometallurgical operation units has been addressed.
The main modules are summarized as follows: l Generic: mixer, separator, splitter, pump, sump, launder, pipe, and tank l Mining: ore, shovel, truck, dredge, clam shell, barge, and ship l Material handling: stockpile, screen, bin, hopper, conveyor, and heap leach drainage l Comminution: crusher, screen, mill, decanter, separator, classifier, and compactor l Beneficiation: flotation, gravity separator, magnetic separator, coal spiral, and dense media bath/cyclone/drum/sump/general/screen/vessel l Hydrometallurgy: column, stripper/absorber, extraction, electrolytic cell, electrowinning cell, filter, thickener, crystallizer, water spray, and pond l Pyrometallurgy: autoclave, flash separator, burner, reactor, dryer, and furnace The advantages of using METSIM are summarized as follows: l In METSIM, The equipment type and scale of production can be adjusted according to the user’s requirement, therefore, providing much flexibility during process designing, and further, enabling the optimization
l METSIM requires the engineer to develop a detailed understanding of the process and provide specific criteria for evaluating process, and consequently, a detailed process data could be obtained from METSIM’s result.
Slag is loaded into the reactor with material treatment capacity of 870 Mt (metric tonne) per year.

Emoto 3,c 1 Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Japan 214-8571 2 Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku, Tokyo, Japan, 169-8555 3 Department of Osstetrics and Gynecology, School of Medicine, Fukuoka University, 7-45-1 Nanakuma, Jyonan-ku, Fukuoka, Japan, 814-0180 a mamorua@isc.meiji.ac.jp, bkanomata@waseda.jp, cemoto@cis.fukuoka-u.ac.jp Keywords: Calcium phosphate, Ultrasonic spray-pyrolysis technique, Microsphere, Drug delivery system (DDS), Anti-tumorigenesis Abstract.
Although the powder before washing contained the NO3 group derived from the starting material of Ca(NO3)2, the FT-IR spectra indicate that the NO3 group disappeared after washing.
Aizawa: Key Engineer.

In France’s study, organization interface collaboration in design, production and construction process are necessary in many areas, including technical design, overall detailed design, procurement, plan and material equipment supply.
Its main work includes: utilize system theory and method combined with engineering characteristics to achieve the goal which is management system integration; fully consider interface compatibility; reasonable setting interface number and position; analysis organization collaborative interface barriers from the unreasonable phenomena; utilize a variety of management theory to mining measures etc.[4].Construction project organization interface management refers to participants communicate, cooperate, mutual collaborate and coordinate the interests of all parties in information, technology, resource, finance and other aspects, in order to achieve expectant project construction goals and ensure the success of project implementation[5].
For the professionals involved in a project, BIM enables a virtual information model to be handed from the design team (architects, surveyors, civil, structural and building services engineers, etc.) to the main contractor and subcontractors and then on to the owner/operator; each professional adds discipline-specific knowledge to the single shared model.
Building team spirit in London: The builder Group, 1993.60 [2] Yang Zhang, in: Theory and key issues of the construction of integrated BIM-based projects.

Stabilized waste can be used as a material, provided it has the necessary engineering properties and leaches toxic pollutants to an acceptable level [8-10].
The relationship between mean compressive strength and Tensile strength 3.4 Density Raw materials, combustion temperature and manufacturing process are key parameters on which the bulk density of normal clay bricks depends.
Zhang, Production of bricks from waste materials – A review, Construction and Building Materials, vol. 47, (2013) 643-655. [16] J.
Weng, Use of sewage sludge ash as brick material, Journal of environmental engineering, vol. 8, n° 11, (2001) 922-927
Shahzada, Utilization of marble wastes in clay bricks: a step towards lightweight energy efficient construction materials, Civil Engineering Journal, vol. 7, n° 19, (2021) 1488-1500.

Introduction One of the key factors limiting the efficiency of Si solar cell is the reflection loss of incident light at the emitter surface.
The reflection loss of solar cell with AR coating varies according to the thickness and refractive index of material used for the AR layer.
Aspnes: Properties of Silicon (INSPEC, The Institution of Electrical Engineers, London and New York 1988).

The measurement of the degree of anisotropy in materials can be inferred from the elastic anisotropy coefficient (A), which can be used to examine the possible micro-cracks in materials in engineering sciences.
Additionally, the refractive index was calculated from the complex dielectric function, which is a key parameter in understanding the optical properties of materials and has a major influence on optical devices such as solar cells and detectors, as seen in Fig.6 (a).
The optical absorption of the materials is shown in Fig. 7(b).
Martín Pendás, Ions in crystals: The topology of the electron density in ionic materials.II.
Grimvall, Thermophysical Properties of Materials, first ed., Elsevier, 1999

Analysis methods are based on the ability of the system to accept loads even if one of the key connections is lost.
Thus, the decision on the value of dynamic factors in any direction is made by the engineer.
The current state of design, construction and maintenance of civil buildings and complex engineering facilities has dangerous trends: complexity is increasing and projects are often carried out by specialists with powerful computing systems, but they do not have enough knowledge to qualify non-standard systems.
Engineering safety and reliability technologies (seminar)).
Barabash, Some aspects of modelling nonlinear behaviour of reinforced concrete, Strength of Materials and Theory of Structures. 100 (2018) 164–171.